Answer: C: pay the complete balance each month
Which equation represents the line shown on the coordinate grid below
(0, -2)
2
4
- 4
-6
-8
-10
2
AY=
2
NON
B
2
y =
-2 +5
5
2
y
-2 + 5
2
DY
2
Answer:
D> y = (2/5)x - 2
Step-by-step explanation:
See attached
Mark charged a battery . Each minute , the percentage of battery’s capacity that was charged increased by 2.5 percent after 17 minutes of charging the battery was 61.5 percent full
how full was the battery when the charging began ??
percent
how long from the time that mark started charging did it take the battery to be fully charged ?
minutes
The initial battery charge was of:
19%.
The time it takes for the battery to be full is of:
32.4 minutes.
What is a linear function?The linear function in slope-intercept format is given as follows:
y = mx + b
In which:
m is the slope, representing the rate of change of the battery change.b is the intercept, representing the initial battery charge.Each minute , the percentage of battery’s capacity that was charged increased by 2.5 percent, hence the slope m is given as follows:
m = 2.5.
Hence:
y = 2.5x + b.
After 17 minutes of charging the battery was 61.5 percent full, hence when x = 17, y = 61.5, and the intercept b is obtained as follows:
61.5 = 2.5(17) + b
b = 61.5 - 2.5 x 17
b = 19.
The battery is fully charged when y = 100, hence the time is obtained as follows:
2.5x + 19 = 100
2.5x = 81
x = 81/2.5
x = 32.4 minutes.
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Given P(x)=x^3 +2x^2 +4x+8. Write P in factored form (as a product of linear factors). Be sure to write the full equation, including P(x)=.
The factored form of the polynomial P(x) = x³ + 2x² + 4x + 8 is P(x) = (x + 1)(x² + x + 7). The quadratic factor x^2 + x + 7 cannot be further factored into linear factors with real coefficients.
To factor the polynomial P(x) = x³ + 2x² + 4x + 8, we can look for potential roots by applying synthetic division or by using synthetic substitution. In this case, we can start by trying small integer values as possible roots, such as ±1, ±2, ±4, and ±8, using the Rational Root Theorem.
By synthetic substitution, we find that -1 is a root of the polynomial. Dividing P(x) by (x + 1) using long division or synthetic division, we get:
P(x) = (x + 1)(x² + x + 7)
Now, we need to factor the quadratic expression x² + x + 7. However, upon factoring this quadratic expression, we find that it cannot be factored further into linear factors with real coefficients. Therefore, the factored form of P(x) is:
P(x) = (x + 1)(x² + x + 7)
Please note that the quadratic factor x² + x + 7 does not have any real roots. Therefore, the complete factored form of P(x) is as given above.
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Identify where T goes if X is the midpoint of BT
The position of the point T will be shown in figure.
What is mean by Midpoint?
A point is equidistance from the endpoints of the line segment, is called the midpoint of the line segment.
Given that;
X is the midpoint of BT.
Now,
Since, X is midpoint of BT.
So, we get;
BX = XT
Hence, The distance between the points B and X is same as the distance between the points T and X.
Here, The distance between the points B and X = 3
So, The distance between the points T and X = 3
Hence, The position of the point T is 3 units far from the point X.
Therefore,
The position of the point T will be shown in figure.
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Random samples of size
100
100 are taken from an infinite population whose population proportion is
0.2
0.2. What are the mean and standard deviation of the sample proportion?
The mean and standard deviation of the sample proportion when random samples of size 100 are taken from an infinite population whose population proportion is 0.2 is:
Mean:0.2 Standard deviation:0.04
A random sample is considered when we pick items in a random manner from a set. When we take samples of size n from a population where proportion p of success, we can find the sample proportion, which is the proportion of successes in the sample.
The sample proportion is usually denoted by p-hat.
The population mean and the population standard deviation for a binary variable are the following:
μ=pσ=√p(1-p)For the sample proportion p-hat, the following apply:
μ=pσ=p(1−p)n
As per the given question, population proportion p = 0.2, sample size n = 100, and using the above formula, we can find the sample proportion as follows:
μ=p=0.2σ=p(1−p)n=0.2(1−0.2)100=0.04
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The circumference
of a circle is 50.24 kilometers
kilometers. What is the circle's radius?
Use 3.14 for л.
Answer: 8
Step-by-step explanation:
50.24 = 2r
50.24/3.14 = 2r/
16=2r
16/2=2r/2
8=r
The radius of the circle with given circumference is 8.
What is circumference?In mathematics, the circumference of any shape determines the path or boundary that surrounds it. In other words, the perimeter, also referred to as the circumference, helps determine how lengthy the outline of a shape is.
We are given that the circumference of a circle is 50.24 miles.
We know that circumference of a circle is given by \(\sf 2\pi r\).
So, using this we get
\(\rightarrow \sf C = 2\pi r\)
\(\sf \rightarrow 50.24 = 2 \times 3.14 \times r\)
\(\sf \rightarrow 50.24 = 6.28 \times r\)
\(\sf \rightarrow r=8\)
Hence, the radius of the circle with given circumference is 8.
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The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of 50 business travelers follow.
7 7 3 8 4 4 4 5 5 5 5 4 9
10 9 9 8 10 4 5 4 10 10 10 11 4
9 7 5 4 4 5 5 4 3 10 10 4 4
8 7 7 4 9 5 9 4 4 4 4
Develop a 95% confidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places.
The 95% confidence interval estimate of the population mean rating for Miami International Airport is approximately 5.50 to 6.74 (rounded to two decimal places).
To develop a 95% confidence interval estimate of the population mean rating for Miami International Airport, we can use the sample data provided. Here are the steps to calculate the confidence interval:
Step 1: Calculate the sample mean and sample standard deviation (s) from the given ratings.
Step 2: Determine the critical value (t*) for a 95% confidence level. Since the sample size is small (n = 50), we need to use the t-distribution. The degrees of freedom (df) will be n - 1 = 50 - 1 = 49.
Step 3: Calculate the standard error (SE) using the formula: SE = s / √n, where n is the sample size.
Step 4: Calculate the margin of error (ME) using the formula: ME = t* * SE.
Let's proceed with the calculations:
Step 1: Calculate the sample mean and sample standard deviation (s).
Sample ratings: 7 7 3 8 4 4 4 5 5 5 5 4 9 10 9 9 8 10 4 5 4 10 10 10 11 4 9 7 5 4 4 5 5 4 3 10 10 4 4 8 7 7 4 9 5 9 4 4 4 4
Sample size (n) = 50
Sample mean = (Sum of ratings) / n = (306) / 50 = 6.12
Sample standard deviation (s) = 2.18
Step 2: Determine the critical value (t*) for a 95% confidence level.
Using a t-distribution with 49 degrees of freedom and a 95% confidence level, the critical value (t*) is approximately 2.01.
Step 3: Calculate the standard error (SE).
SE = s / √n = 2.18 / √50 ≈ 0.308
Step 4: Calculate the margin of error (ME).
ME = t* * SE = 2.01 * 0.308 ≈ 0.619
Step 5: Construct the confidence interval.
Confidence Interval = 6.12 ± 0.619
Lower bound = 6.12 - 0.619 ≈ 5.501
Upper bound = 6.12 + 0.619 ≈ 6.739
The 95% confidence interval estimate of the population mean rating for Miami International Airport is approximately 5.50 to 6.74 (rounded to two decimal places).
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help ASAP will mark brainlist
Hi there!
\(\large\boxed{-40 + 20i}\)
Recall the rules for the imaginary number "i":
i = √-1 i² = -1
Given:
(5i) (5i) + (5i) (4 + 3i)
Multiply:
(25i²) + 20i + 15i²
Simplify using the rule above:
25(-1) + 20i + 15(-1)
-25 + 20i - 15
-40 + 20i
a = -40
b = 20
the measure of 2 angles are (3y+11) and (11 y+15). What is the value of y if the angles are congruent
As a result, if the two angles' measurements are (3y+11) and (11y+15) and they are congruent, then y must equal -1/2.
What is angle?An angle is a geometric figure formed by two rays that have a common endpoint, called the vertex. The rays are also known as the sides or legs of the angle. Angles are typically measured in degrees, with a full circle measuring 360 degrees. Angles can also be measured in radians, which are another unit of angular measurement used in mathematics and physics. One radian is equal to the angle subtended by an arc of a circle that has a length equal to the radius of the circle. The size of an angle is determined by the amount of rotation that occurs between the two rays. This is typically measured relative to the positive x-axis, with counterclockwise rotations being considered positive and clockwise rotations being considered negative. Angles are used in a wide range of mathematical and scientific applications, including geometry, trigonometry, physics, engineering, and architecture. They are also used in many everyday situations, such as measuring the size of an opening or the angle of incidence of sunlight on a surface.
Here,
If the two angles are congruent, then they must have the same measure.
So we can set the expressions for the measures of the two angles equal to each other and solve for y:
3y + 11 = 11y + 15
Subtracting 3y from both sides:
11 = 8y + 15
Subtracting 15 from both sides:
-4 = 8y
Dividing both sides by 8:
y = -1/2
Therefore, if the measure of the two angles is (3y+11) and (11y+15) and they are congruent, then y must equal -1/2.
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The sears tower in chicago is 443 m tall. Joe wants to set the world’s stair climbing record and runs all the way to the roof of the tower. If joe’s average upward speed is 0. 60 m/s, how long will it take joe to climb from street level to the roof of the sears tower?.
It will take Joe 738.3 seconds (12.3 minutes) to climb from street level to the roof of the sears tower.
What is speed?The definition of speed is the rate at which an object's position changes in any direction. Speed is defined as the ratio of distance traveled to time spent traveling. Because it has only one direction and no magnitude, speed is a scalar quantity. Speed is a measure of how quickly something moves or is done, or how fast something moves. A car traveling at 45 miles per hour is an example of speed. Someone cleaning a room in 10 minutes is an example of speed. A jaguar's speed is an example of speed.To find how long will it take joe to climb from street level to the roof of the sears tower:
If Joe moves at 0.6 m/s in the vertical direction, the total distance he must cover is 443 meters in the vertical direction. The formula for average speed is now:Average speed = total distance / total timeTotal time = total distance / average speedTotal time = 443/0.6Total time = 738.3 secondsTherefore, it will take Joe 738.3 seconds (12.3 minutes) to climb from street level to the roof of the sears tower.
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On a bicycle trail, the city is painting arrows like the one shown below:
Upper pointing arrow with height of 15 and length of 13. Rectangular base of arrow has length of 11 and height of 12. All units are in centimeters.
Calculate the area of the arrow by decomposing it into rectangles and triangles. (4 points)
195 square centimeters
171 square centimeters
151.5 square centimeters
148.5 square centimeters
The Area of the composite figure = area of the rectangle + area of the triangle = 148.5 cm².
What is the Area of a Composite Figure?The figure formed by the arrow can be decomposed into a rectangle and a triangle.
The area of the composite figure = area of the rectangle + area of the triangle.
Find the area of the rectangle:
Length = 12 cm
Width = 11 cm
Area of the rectangle = (length)(width) = (12)(11)
Area of the rectangle = 132 cm²
Find the area of the triangle
Base = 11 cm
Height = 15 - 12 = 3 cm
Area of the triangle = 1/2(b)(h) = 1/2(11)(3)
Area of the triangle = 16.5 cm²
Area of the composite figure = area of the rectangle + area of the triangle = 132 + 16.5 = 148.5 cm².
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what distance does the tip of the minute hand on a clock travel in 11 minutes if the minute hand is 23 cm long?
The tip of the minute hand on a clock travels approximately 26.4 cm in 11 minutes if the minute hand is 23 cm long.
What is Circle?
A circle is a two-dimensional geometric shape that is defined as the set of all points in a plane that are a fixed distance away from a given point, called the center of the circle. This distance is known as the radius of the circle.
A circle can also be defined as the locus of a point that moves in a plane in such a way that its distance from a fixed point is constant. The constant distance is the radius of the circle.
The minute hand on a clock makes a full rotation in 60 minutes, which means it travels the circumference of a circle with a radius of 23 cm in 60 minutes. The formula for the circumference of a circle is C = 2πr, where r is the radius of the circle, and π is a mathematical constant approximately equal to 3.14.
Therefore, the circumference of the circle traced by the tip of the minute hand is:
C = 2πr = 2 × 3.14 × 23 cm ≈ 144.44 cm
To find out how far the minute hand travels in 11 minutes, we need to calculate what fraction of the circumference it covers in that time. Since 11 minutes is about 18.3% of an hour (60 minutes), the minute hand travels 18.3% of the circumference of the circle in that time:
Distance traveled = 0.183 × 144.44 cm ≈ 26.4 cm
Therefore, the tip of the minute hand on a clock travels approximately 26.4 cm in 11 minutes if the minute hand is 23 cm long.
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a bin contains 21 balls, numbered 1 through 21. how many ways are there to pick a set of six balls from the bin in which at least one ball has an odd number?
To find the number of ways to pick a set of six balls from the bin in which at least one ball has an odd number, we can use the principle of inclusion-exclusion.
First, we find the total number of ways to pick a set of six balls from the bin, which is 21 choose 6 (written as C(21,6)) = 54264.
Next, we find the number of ways to pick a set of six balls from the bin in which all the balls have even numbers. There are only 10 even-numbered balls in the bin, so the number of ways to pick a set of six even-numbered balls is 10 choose 6 (written as C(10,6)) = 210.
Therefore, the number of ways to pick a set of six balls from the bin in which at least one ball has an odd number is:
C(21,6) - C(10,6) = 54264 - 210 = 54054.
So there are 54054 ways to pick a set of six balls from the bin in which at least one ball has an odd number.e
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h. Four businessman invested a sum of Rs.
250000 in the ratio of 3:5:7:10 to start
a new bushess
i) Find the sum invested by each of them
i At the end of the year, if they gained
Rs 50,000 divide the profit among them in the ratio of their shapes
.
Answer:
The answers are in solutions.
Step-by-step explanation:
Four businessmen invested a sum of Rs. 250,000 in the ratio of 3:5:7:10 to start a new business.(i) The amount invested by each businessman is;
1^st businessman invested:
\(\frac{3}{25} * 250,000 =\) Rs. 30,000
2^nd businessman invested:
\(\frac{5}{25} * 250,000\) = Rs. 50,000
3^rd businessman invested:
\(\frac{7}{25} *250,000\) = Rs. 70,000
4^th businessman invested:
\(\frac{10}{25} *250,000\) = Rs. 100,000
If they gained Rs. 50,000(ii) The profit each one of them got is;
1^st businessman got:
\(\frac{3}{25} * 50,000\) = Rs. 6,000
2^nd businessman got:
\(\frac{5}{25} *50,000\) = Rs. 10,000
3^rd businessman got:
\(\frac{7}{25} *50,000\) = Rs. 14,000
4^th businessman got:
\(\frac{10}{25} *50,000\) = Rs. 20,000
calculate the area of his garden from the picture below pls help
Answer:
Hello! answer: 105.5
Hope that helps!
75 + 18 + 12.5 = 105.5
Which aspect of Earth's orbital relationship to the Sun varies with a periodicity of both 400 Ka and 100 Ka?
These cycles are known as the eccentricity cycles, and they are one of the factors that contribute to the long-term climate variations on Earth
The aspect of Earth's orbital relationship to the Sun that varies with a periodicity of both 400 Ka and 100 Ka is the eccentricity of Earth's orbit. The eccentricity refers to the shape of Earth's orbit around the Sun, which is not a perfect circle, but an ellipse. The eccentricity of Earth's orbit changes over time due to gravitational interactions with other planets, particularly Jupiter and Saturn. When Earth's orbit is more elliptical, its distance from the Sun varies more throughout the year, leading to variations in climate and the amount of solar radiation received on Earth's surface. The periodicity of 400 Ka corresponds to a cycle of variations in Earth's eccentricity that affects the amount of solar radiation received at different latitudes and the distribution of ice ages. The periodicity of 100 Ka corresponds to a cycle of variations in Earth's eccentricity that affects the intensity of the seasons and the distribution of glacial periods. These cycles are known as the eccentricity cycles, and they are one of the factors that contribute to the long-term climate variations on Earth.
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eremy works two jobs. He makes $8/hr working at a deli and $12/hr working for a landscaper. Let x represent the number of hours he works at the deli, and let y represent the number of hours he works for the landscaper. What do the solutions of the inequality represent?
combinations of the hours he can work at the two jobs and earn at least $300
combinations of the hours he can work at the two jobs and earn at most $300
combinations of the hours he can work at the two jobs and earn less than $300
combinations of the hours he can work at the two jobs and earn more than $300
Answer:
A.) combinations of the hours he can work at the two jobs and earn at least $300
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
in a 2 x 2 x 2 factorial design, what are all the possible effects to test?
In a 2 x 2 x 2 factorial design, you need to test a total of seven possible effects: three main effects (A, B, and C) and four interaction effects (A x B, A x C, B x C, and A x B x C).
In a 2 x 2 x 2 factorial design, there are three independent variables, each with two levels. The possible effects to test include main effects and interaction effects.
The main effects are the individual effects of each independent variable on the dependent variable. In this design, there are three main effects to test: the effect of the first independent variable (A), the effect of the second independent variable (B), and the effect of the third independent variable (C).
Interaction effects occur when the effect of one independent variable on the dependent variable depends on the level of another independent variable. In a 2 x 2 x 2 design, there are three possible two-way interaction effects to test: A x B, A x C, and B x C. Additionally, there is one three-way interaction effect to test: A x B x C.
In summary, in a 2 x 2 x 2 factorial design, you need to test a total of seven possible effects: three main effects (A, B, and C) and four interaction effects (A x B, A x C, B x C, and A x B x C).
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In the Florida Lottery Cash4Life game a player must select five numbers from 1 to 60 and then one Cash Ball number from 1 to 4. He will win the jackpot of $1000 a day for life if all five numbers and the Cash Ball match the winning numbers drawn on Monday nights. He will win $1000 a week for life if just all 5 numbers match the winning numbers. Assuming that the numbers are equally likely to be
drawn, determine:
(a) (5) The probability that the player will $1000 a day for life;
(b) (5) The probability that the player will $1000 a week for life;
The probability of winning $1000 a day for life is approximately 5.245 x 10^-11 and the probability of winning $1000 a week for life is approximately 1.07 x 10^-8. The probability of winning the jackpot ($1000 a day for life) is 1/(60^5 * 4), while the probability of winning $1000 a week for life is 1/(60^5).
In the Florida Lottery Cash4Life game, a player must select five numbers from 1 to 60 and then one Cash Ball number from 1 to 4. The jackpot prize is $1000 a day for life if all five numbers and the Cash Ball match the winning numbers drawn on Monday nights. If just all five numbers match the winning numbers, the player will win $1000 a week for life.
To determine the probability of winning $1000 a day for life, we can use the formula for the probability of independent events: P(A and B) = P(A) x P(B)
(a) To win the jackpot of $1000 a day for life, the player needs to match all five numbers and the Cash Ball. There are 60 options for each of the five numbers and 4 options for the Cash Ball. The total number of possible outcomes is 60^5 (60 choices for each of the five numbers) times 4 (for the Cash Ball). So the probability of winning the jackpot is 1/(60^5 * 4). (b) To win $1000 a week for life, the player needs to match only the five numbers, without considering the Cash Ball. The total number of possible outcomes for this scenario is 60^5. Therefore, the probability of winning $1000 a week for life is 1/(60^5).
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Please help I don’t know how to write it so I did pictures instead.
Answer:
Strawberry- 6 12 18
Banana - 1 2 3
Hope this helps :)
Step-by-step explanation:
if anybody could help with this, i can give brainliest
Answer:
A.
Step-by-step explanation:
He already had 100 into the account so we add that, 25x is derived from the fact that x=the amount of months and 25 is the amount per a month he saves.
An emergency room doctor prescribes a certain pain medication to be delivered through an IV drip. She prescribes 800 mL of the medication to be delivered over the course of 8 hours. The IV delivers 1 mL of medication over the course of 30 drips. How many drips per minute are needed to deliver the prescribed dosage?
Answer:
The number of drips per minute needed to deliver the medication at the prescribed dosage is 50 drips per minute
Step-by-step explanation:
The given parameters are;
The volume of the prescribed medication to delivered through IV = 800 mL
The duration over which the drug is to be delivered = 8 hours
The rate at which the IV delivers the medication = 30 drips/1 mL
800 mL = 800 × 1 mL
Therefore, the total number of drips in 800 mL= 800 mL × 30 drips/mL = 24,000 drips
The rate at which the drug is delivered = 800 mL/(8 hours) = 100 mL/hr = 100/60 mL/minute = 10/6 mL/minute
The total number of drips in 10/6 mL= 10/6 mL × 30 drips/mL = 50 drips
∴ The rate at which the medication needs to be delivered = 10/6 mL/minute = 50 drips/minute
The number of drips per minute needed to deliver the medication at the prescribed dosage of 800 mL/(8 hours) = 10/6 mL/minute = 50 drips per minute.
PLS HELP WILL MARK BRAINLIEST!!!!!!!!
answer both questions (they are two separate questions)
Answer A is correct for both questions.
Step-by-step explanation:
The area of the rectangle is lengthxwidth. To find the length, we can divide the area by the width.
\(\frac{(4x^2-43x+63)}{(4x-7)}\) is the equation.
We need to simplify it (or just divide). Since the coefficient of the area (on the x^2) is the same as that on the width, we know that that same coefficient on the length is 1.
This gets us to the basic frame (1x+/-y).
To find the value of y, we need to pay attention to the "-43x+63" and "-7" aspects of the area and width, respectively. To get "63," the "-7" was multiplied by the y — by dividing 63 by -7, we know that the value of y is -9 (the numbers both have to be negative to multiply to a positive number).
We are left with the length (x-9). Put together, this means (x-9)(4x-7) is the area. Multiplying, that makes (4x^2-7x-36x+63), or (4x^2-43x+63). Since this is the area given to us, we know our answer is correct. For this question, the answer is A.
*****
Divide \(9x^4-2-6x-x^2\) by \(3x-1\). First, put the first equation in order by exponents. We get \(\frac{9x^4-x^2-6x-2}{3x-1}\). Since the exponent on the upper equation goes up to x^4, and we are dividing by a simple x, we know that the first exponent in our answer will be x^3. Since our coefficient needs to have a product of 9 when multiplied by 3, it is 3. The first part of our answer is \((3x^3)\). Since there is no exponent of 3 for x in the upper equation, and since the "x^2" that has to be the next term in the equation due to it being present in each answer choice, we know that it as to be a "+x^2" — the "3x^3 that result from the "-1" (in the lower equation) being multiplied by 3x^3 have to be cancelled out by a "-3x^3", and if the sign for the term "x^2" is negative, we end up with tw0 "3x^3" that add up to "6x^3" instead of cancelling each other out.
Now, we have \((3x^3-x^2)\). We can immediately rule out C. Moving on.
We now have \((3x-1)(3x^3+x^2)=9x^4-x^2\). We can rule out answer choice B because it is incomplete - we are missing the second part of the upper equation, "-6x-2." Both of the remaining answers include "-2" as the next term, whether with an x or without.
Honestly, I haven't done algebra in a few years — while I know there's a way to deduce the rest of the equation, let's solve the equation using the two remaining answer choices and see which one is correct.
A: \((3x-1)(3x^3+x^2-2-\frac{4}{3x-1} )\)
\(=9x^4+3x^3-6x -3x^3-x^2+2-4\) (FOIL) (3x-1 times \(-\frac{4}{3x-1}\) = -4)
\(=9x^4+3x^3-3x^3-x^2-6x+2-4\) (in order of exponents)
\(=9x^4-x^2-6x+2-4\) (simplify)
\(=9x^4-x^2-6x-2\) (simplify)
D: \((3x-1)(3x^3+x^2-2x-\frac{4}{3x-1} )\)
\(=9x^4+3x^3-6x^2-\frac{4}{1} -3x^3-x^2+3x+\frac{4}{1}\)(FOIL)
\(=9x^4+3x^3-3x^3-7x^2-4+4\) (in order of exponents)
\(=9x^4-7x^2\) (simplify)
A is exactly the long fraction we started with (\(9x^4-2-6x-x^2\)), just in a different order! This means that answer A, when multiplied by (3x-1), equals the same thing which, if divided by (3x-1), yields answer A. Because of the rules of multiplication/division (xy=z, z/x=y, z/y=z), this means that we have the proper set of numbers. Answer A is correct.
I hope this helps!!!!! Let me know if there's anything else I can help with :)
(a)The length of the rectangle will be (x-9).
(b) The answer obtained is \(B= 3x^3-x^2+2x-4\).
What is the area?The space filled by a flat form or the surface of an item is known as the area.
The number of unit squares that cover the surface of a closed-form is the figure's area. Square centimeters and other similar units are used to measure area.
The length of the rectangle is found as;
\(\rm A = L \times B \\\\\ (4x^2 -43x+63)=(4x-7)(B) \\\\\ (4x-7)(x-9)=(4x-7)(B) \\\\ B=(x-9)\)
Hence the length of the rectangle will be (x-9).
(b) The answer obtained is \(B= 3x^3-x^2+2x-4\).
The given equation is to be divided by (3x-1)
\(\rm B= \frac{4x^2-43 x + 63 }{(3x-1)} \\\\ B=\frac{(3x+1)(x-1)(3x^2+2x+2)}{(3x-1)} \\\\ B= 3x^3-x^2+2x-4\)
Hence the answer obtained is \(B= 3x^3-x^2+2x-4\).
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suppose that you are rolling a six sided dice. let a = even what is p(ac)?
Answer:
1/2
Step-by-step explanation:
When you roll a 6-sided die, there are 6 possible outcomes:
1, 2, 3, 4, 5, 6
3 of the outcomes are even, and 3 of the outcomes are odd.
p(A) = p(even) = 3/6 = 1/2
p(Ac) = 1 - p(A) = 1 - 1/2 = 1/2
An environmental group is interested in what percentage of Americans consider climate change an immediate threat to humanity. From a representative list of 4590 American citizens, they randomly sampled 30; all responded to their questions. They will consider the sample proportion of respondents that agree climate change is an immediate threat to humanity. Previously, 35% of Americans considered climate change an immediate threat to humanity; assume this has not changed.Calculate the probability the proportion of the 30 Americans sampled that agree climate change is an immediate threat to humanity exceeds 35%.
We can solve the given problem using conversion of Binomial to Normal distribution.
(The binomial distribution is defined as the discrete probability distribution which can only give two possible results in an experiment, that is either success or failure.)
The binomial distribution is converted to Normal distribution when the number of total trial, denoted as n is sufficiently large and the probability of success ( or failure), represented as p is small.
Mean , E(x)= np
Variance, V(x) = npq
where V(x) and E(x) are variance and mean of normal distribution.
Given,
n= 4590, p= 35%= 0.35, q= 0.65
Thus, E(x) = 4590 * 0.35 = 1606.5
V(x) = 4590 * 0.35* 0.65= 1044.225
Thus, the probability the proportion of the 30 Americans sampled that agree climate change is an immediate threat to humanity exceeds 35% is,
P( x > 1606.5)= P( x<= 1606.5)
= P( z= x-1606.5 / 1044.225)
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The heights of married men are approximately normally distributed with a mean of 70 inches and a standard deviation of 2 inches, while the heights of married women are approximately normally distributed with a mean of 65 inches and a standard deviation of 3 inches. Consider the two variables to be independent. Determine the probability that a randomly selected married woman is taller than a randomly selected married man.
The heights of married men are approximately normally distributed with a mean of 70 inches and a standard deviation of 2 inches, while the heights of married women are approximately normally distributed with a mean of 65 inches and a standard deviation of 3 inches. Consider the two variables to be independent. Determine the probability that a randomly selected married woman is taller than a randomly selected married man.
According to the problem statement, the two variables are independent. Therefore, we need to find the probability of P(Woman > Man). We have the following information given: Mean height of married men = 70 inches Standard deviation of married men = 2 inches Mean height of married women = 65 inches Standard deviation of married women
= 3 inches We need to calculate the probability of a randomly selected married woman being taller than a randomly selected married man. To do this, we need to calculate the difference in their means and the standard deviation of the difference. \(μW - μM = 65 - 70 = -5σ2W - σ2M = 9 + 4 = 13σW - M = √13σW - M = √13/(√2)σW - M = 3.01\)Now, we can standardize the normal distribution using the formula,
(X - μ)/σ, where X is the value we want to standardize, μ is the mean of the distribution, and σ is the standard deviation of the distribution. \(P(Woman > Man) = P(Z > (W - M)/σW-M) = P(Z > (0 - (-5))/3.01) = P(Z > 1.66)\) Using the normal distribution table, we can find the probability of Z > 1.66 to be 0.0485. Therefore, the probability of a randomly selected married woman being taller than a randomly selected married man is 0.0485.
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Four different objects are placed on a number line at 0. The chart describes the motion of each object
Motion
3 units left, then 3 units right
6 units right, then 18 units right
8 units left, then 24 units right
16 units right, then 8 units left
Object
W
X
Y
Z
Using the information in the chart, the distance and displacement of each object can be determined. Which object
has a distance that is three times as great as its displacement?
DW
Y
OZ
The object whose distance is three times its displacement is object Z.
How to find the distance of the object on the coordinate?The distance is defined as a scalar quantity representing the total distance traveled.
Displacement is a vector representing the distance between the end and start points.
Distance, Displacement, Ratio To calculate r = 3
Object Motion Distance Displacement ratio
X 3 units left, 3 units right 3 + 3 = 6 3 - 3 = 0 ∞
Y 6 units right, 18 units right 6 + 18 = 24 6 + 18 = 24 1
W 8 units left, 24 units right 8 + 24 = 32 -8 + 24 = 16 2
Z 16 units right, 8 units left 16 + 8 = 24 16 - 8 = 8 3
Ratio is calculated by dividing the distance by the displacement.
distance/displacement.
For object Z it is 24/8 = 3. So the object whose distance is three times its displacement is object Z.
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5 over 4 multiplied by 12
Answer:
the answer is 15
Step-by-step explanation:
5/4 x 12 = 15
15
Step by step Explanation
\( \frac{5}{4} \times 12\)
\( \frac{60}{4} \)
I need some help here guys. I don't know what to do and I need this to be done until 11:59.. :(
Answer: The graph is shown below. It is nonlinear
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Explanation:
I used GeoGebra to make the graph. Desmos is another option I recommend.
The equation we graph is y = (1/2)^x since we're splitting the paper in half each time. This is an exponential decay function. Note how the curve slopes downhill when moving to the right.
It appears the curve touches or crosses the x axis; which is misleading. Instead, the curve is getting closer and closer to this horizontal asymptote. It will never reach the x axis. Think of it like an electric fence.
As the graph indicates, we don't have a straight line. Therefore, the function isn't linear. It's a nonlinear curve.
Determine the standard error of the estimated slope coefficient for the price of roses (point F) and whether that estimated slope coefficient is statistically significant at the 5 percent level. A. 9.42 and statistically significant since the t-statistic is greater than 2 in absolute value. B. 9.42 and statistically insignificant since the t-statistic is less than 2 in absolute value. C. 4.74 and statistically insignificant since the P-value is greater than 5 percent. D. 4.74 and statistically significant since the P-value is greater than 5 percent.
To determine the standard error of the estimated slope coefficient and its statistical significance, more information is needed, such as the t-statistic or the p-value associated with the estimated slope coefficient. The options provided do not include the necessary details to make a conclusion.
The standard error of the estimated slope coefficient measures the precision or variability of the estimated coefficient. It provides information about how much the estimated slope coefficient could vary across different samples.
The t-statistic and the p-value, on the other hand, are used to assess the statistical significance of the estimated slope coefficient. The t-statistic measures the number of standard errors the estimated coefficient is away from zero, while the p-value indicates the probability of observing a coefficient as extreme as the estimated one under the null hypothesis that the true coefficient is zero.
Without the t-statistic or p-value, it is not possible to determine the statistical significance of the estimated slope coefficient at the 5% level.
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