Answer:
this is also why
im failing math
Step-by-step explanation:
eyeysys
I'm so confused on thins can someone PLEASE help me??? It's Algebra by the way
Answer:
Degree: The degree of the function is 3.
X-Intercepts with multiplicity greater than 1: x = -2 and x = 0
How many distinct x-intercepts?: There are two distinct x-intercepts.
How many zeros are there?: There are three zeros, one at x = -2 and two at x = 0 (with a multiplicity of 2).
If the angles are represented in degrees, find both angles:
cos(5x+2)=sin(11x+8)
Answer:
27,63
Step-by-step explanation:
sin (90-x)=cos x
90-x+x=90
cos (5x+2)=sin (11x+8)
5x+2+11x+8=90
16x+10=90
16x=90-10=80
x=80/16=5
5x+2=5*5+2=27
11x+8=11*5+8=63
also 27+63=90
Vertical and Horizontal Lines
Write the equation of the line graphed below.
Answer:
x=3
Step-by-step explanation:
Because the line lies on x =3
Answer:
x=3
Step-by-step explanation:
This is a vertical line ( up and down)
Vertical lines are of the form x=
x=3
On a snow day, Ariana created two snowmen in her backyard. Snowman A was built to a height of 42 inches and Snowman B was built to a height of 60 inches. The next day, the temperature increased and both snowmen began to melt. At sunrise, Snowman A's height decrease by 6 inches per hour and Snowman B's height decreased by 9 inches per hour. Let
�
A represent the height of Snowman A
�
t hours after sunrise and let
�
B represent the height of Snowman B
�
t hours after sunrise. Graph each function and determine which Snowman is taller after 5 hours.
From given linear equations, the height of Snowman B is 15 inches and the height of Snowman A is 12 inches
What is a linear equation ?
A linear equation is an equation in which the power of the variable is one. It takes the form:
y = mx + b
where x and y are variables, m is the slope of the line, and b is the y-intercept. The slope represents the rate of change of y with respect to x, while the y-intercept is the point where the line intersects the y-axis.
Now,
To graph the height of each snowman as a function of time, we can use the following linear equations:
A(t) = 42 - 6t
B(t) = 60 - 9t
Here, t represents the time in hours after sunrise, and A(t) and B(t) represent the heights of Snowman A and Snowman B, respectively, at time t.
To determine which snowman is taller after 5 hours, we can simply evaluate each function at t = 5 and compare the results:
A(5) = 42 - 6(5) = 12
B(5) = 60 - 9(5) = 15
Therefore, after 5 hours, Snowman B is taller than Snowman A.
To graph the functions, we can plot the height on the y-axis and the time on the x-axis. The graphs will be two straight lines with negative slopes, intersecting the y-axis at the initial heights of the snowmen:
For Snowman A:
y-intercept = 42 (initial height)
slope = -6 (decrease of 6 inches per hour)
For Snowman B:
y-intercept = 60 (initial height)
slope = -9 (decrease of 9 inches per hour)
The graph could be plotted as follows:
| .
| .
| .
| .
| .
| .
| .
| .
| .
| .
| .
| .
|-------------------------------> t (hours)
0 1 2 3 4 5
| .
| .
| .
| .
| .
| .
| .
| .
| .
| .
| .
| .
|-------------------------------> t (hours)
0 1 2 3 4 5
As we can see, after 5 hours, the height of Snowman B is 15 inches and the height of Snowman A is 12 inches.
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What is the surface area of a rectangular prism with a width of 5cm, length
of 4cm and height of 3cm?
Answer:
It would be 94 cm
Step-by-step explanation:
Answer:
94 cm
Step-by-step explanation:
just googled a rectangular prism calculator
WILL MARK BRAINLIEST PLS HELP!! Kirsten just found out that Snap will no longer be free, and she is devastated. Snap will charge 3 cents for each picture sent and 9 cents for each video. Her parents are willing to allow her to spend no more than 15 dollars a month. Kirsten knows that based on her typical usage she will send more than 200 Snaps a month. Model Kirsten’s monthly Snap budget and show all possible combinations. Identify one plausible scenario that could occur. INEQUALITIES
she can send up to 500 snaps OR 166 videos
she can send up to 500 snaps 150 videos
If A and B are complementary angles and A = (8x+20), B = (7x-5) find A
Answer:
m∠A = 60°
Step-by-step explanation:
Complementary Angles add up to 90°
Step 1: Set up equation
8x + 20 + 7x - 5 = 90
Step 2: Solve for x
15x + 15 = 90
15x = 75
x = 5
Step 3: Find m∠A
m∠A = 8x + 20
m∠A = 8(5) + 20
m∠A = 40 + 20
m∠A = 60°
Line 1 possies through the points (10,16) and (13,-9), Line 2 is peraliel to tine 1 and passes through the point (2,-9). Whet is the equation of Line 2?
The equation of Line 2, which is parallel to Line 1 and passes through the point (2,-9), is y = (-25/3)x + (23/3).
To find the equation of Line 2, we first need to determine its slope. Since Line 2 is parallel to Line 1, it will have the same slope as Line 1.
The slope of Line 1 can be calculated using the formula m = (y₂ - y₁) / (x₂ - x₁), where (x₁, y₁) and (x₂, y₂) are two points on the line. Given the points (10, 16) and (13, -9) on Line 1, the slope is m = (-9 - 16) / (13 - 10) = -25/3.
Now that we have the slope, we can use the point-slope form of a linear equation to find the equation of Line 2. The point-slope form is y - y₁ = m(x - x₁), where (x₁, y₁) is a point on the line and m is the slope.
Line 2 passes through the point (2, -9), we can substitute these values into the point-slope form to get y - (-9) = (-25/3)(x - 2), which simplifies to y + 9 = (-25/3)x + (50/3).
Rearranging the equation, we get y = (-25/3)x + (23/3), which is the equation of Line 2.
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In a Healthy Jogging event, a few hundred participants were expected to jog 7 800 000 metres altogether. They had jogged 25 000 metres in the first few minutes. How many thousands must be added to 25 000 to make 7 800 000?
we have to add 7775000 to make 7800000 from 25000 which is calculated by using Substraction method.
Subtraction in mathematics is the process of subtracting one integer from another. In other terms, the result of subtracting two from five is three. After addition, subtraction is usually the second process you learn in math class.Subtraction is the action or procedure of determining the difference between two quantities or figures. The phrase "taking away one number from another" is also used to describe the process of subtracting one number from another.
Distance to be covered altogether= 7800000 m
THE distance has covered= 25000 m.
We can calculate the thousands needs to be added in 25000 to make it 7800000 by using Substraction method:-
7800000-25000= 7775000m
hence, to make 7800000 from 25000 we have to add 7775000.
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What are the two methods of finding unit rate
Answer:
The Packing Cube method and something else I cant remember it.
Step-by-step explanation:
find dz dt by the chain rule where z = cosh2 (xy), x = 1 2 t, and y = e t .
To find dz/dt using the chain rule, we need to calculate the derivatives of z with respect to x and y separately, and then multiply them by the derivatives of x and y with respect to t.
Given:
z = \(cosh^{2} (xy)\)
x = (1/2)t
y = \(e^{t}\)
Let's start by finding the partial derivatives of z with respect to x and y:
∂z/∂x = \(2cosh(xy) * sinh(xy) * y\) (using the chain rule)
∂z/∂y = \(2cosh(xy) *sinh(xy)*x\) (using the chain rule)
Next, let's find the derivatives of x and y with respect to t:
dx/dt = 1/2
dy/dt = \(e^{t}\)
Finally, we can use the chain rule to find dz/dt:
dz/dt = (∂z/∂x)(dx/dt) + (∂z/∂y)(dy/dt)
= \(2cosh(xy) *sinh(xy)*y*(1/2) + 2cosh(xy)*sinh(xy)*x*e^{t}\)
Now, substitute the given expressions for x and y:
\(dz/dt = 2cosh((1/2)t*e^{t} * sinh((1/2)t*e^{t} *(1/2)* + 2cosh((1/2)t*e^{t} *sinh((1/2)t*e^{t} *((1/2)t)\)
Simplifying further, we have:
\(dz/dt = cosh((1/2)t*e^{t} *sinh((1/2)t*e^{t})* e^{t} + cosh((1/2)t* e^{t}*sinh((1/2)t*e^{t}* ((1/2)t)\)
This is the expression for dz/dt using the chain rule with the given values of x and y.
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Peter guesses on all 10 questions of a multiple-choice quiz. Each question has 4 answer choices, and Peter needs to get at least 7 questions correct to pass. Here are some probabilities computed using the binomial formula: P(getting exactly 7 correct) = 0.0031 P(getting exactly 8 correct) = 0.000386 P(getting exactly 9 correct) = 2.86 × 10−5 P(getting exactly 10 correct) = 9.54 × 10−7. Using the information, combine the individual probabilities to compute the probability that Peter will pass the quiz.
a. 0.001
b. 0.002
c. 0.0035
d. 0.005
Using the information, combine the individual probabilities to compute the probability that Peter will pass the quiz is (c) 0.0035.
Probability of Peter Passing QuizTo compute the probability that Peter will pass the quiz (i.e., get at least 7 questions correct), we need to sum the probabilities of getting exactly 7, exactly 8, exactly 9, and exactly 10 questions correct.
So, the probability of passing the quiz is:
P (getting at least 7 correct) = P (getting exactly 7 correct) + P (getting exactly 8 correct) + P (getting exactly 9 correct) + P (getting exactly 10 correct)
= 0.0031 + 0.000386 + 2.86 × 10⁻⁵ + 9.54 × 10⁻⁷
= 0.0035
Therefore, the result is c. 0.0035.
The binomial formula can be used to solve a wide range of problems in probability and statistics. The binomial formula is used to calculate the probability of getting a specific number of successes in a fixed number of independent trials, where each trial has only two possible outcomes (success or failure).
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A rectangular box has a width of x meters, length of x + 3 meters, and
a height of x 2 meters. Write an expression for its volume.
Answer:
x*(x+3)*(x^2)
Step-by-step explanation:
Width: x meters, length: x + 3 meters, height x^2 meters
It's an expression, so there's no simplifying needed.
x(x+3)(x^2)
But if I'm wrong and it's supposed to be simplified, Read the rest.
First, multiply x by x + 3
x(x + 3)
x^2 + 3x
Now, multiply x^2 + 3x by x^2
(x^2)(x^2 + 3x)
x^4 + 3x^3
What is the area of a circle with a diameter of 12 meters? leave the answer in terms of π. 6π square meters 12π square meters 36π square meters 144π square meters
To find the area we have to calculate the radius first. Here the radius is 6m. So the area will be 36π m². Option C is the correct one.
Diameter is the straight line connecting two points on the edge of the circle, that passes through the Centre of the circle. It will be equal to two times the radius.
D = 2r
r = D/2 = 12/2 = 6m
Area of a circle can be calculated using the equation πr².
Area = π × 6² = 36π m²
So the area of the given circle with diameter will be 36π m².
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**25 POINTS**
Which of the following lists of ordered pairs is a function?
Answer: A
Step-by-step explanation: A function is when every domain (x value) corresponds to one range (y value) so that it passes the vertical line test
In one-way ANOVA, involving three groups, the alternative hypothesis would be considered correct if, in the population,a.all means were equalb.two means are equal but the third is differentc.all three means have different valuesd.either (b) or (c) above is true
There are at least two group means that are significantly different from one another, according to the alternative hypothesis (H a). The alternative hypothesis is adopted if the outcome is statistically significant.
What is anova test?You can use ANOVA to determine whether differences between data sets are statistically significant. It functions by examining the levels of variance present within each group using samples drawn from each.
The likelihood that the mean of a sample taken from the data will be different owing to chance increases if there is a lot of variance (spread of data away from the mean) among the data groups.
In addition to examining the variance within the data groups, ANOVA also considers sample size (the smaller the sample, the lower the likelihood that outliers will be randomly selected from it) and sample mean differences (the greater the difference between the sample means, the greater the likelihood that an outlier will be randomly selected from it).
hence, The alternative hypothesis is adopted if the outcome is statistically significant.
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Use Newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given equation. (Round your answer to four decimal places.)
1/3x^3+1/2x^2+8=0 x1=-3
what is x3= ?
(PLEASE SHOW YOUR WORK)
The third approximation is x3 = 19.6
The Newton's method allow to approximate the root of a function as:
Newton's method, commonly referred to as the Newton-Raphson method after Isaac Newton and Joseph Raphson, is a root-finding algorithm that generates progressively improved approximations to the roots (or zeroes) of a real-valued function. The most fundamental form begins with a single-variable function f defined for a real variable x, the function's derivative f′, and an initial point x0 for the root of f.
xₙ = xₙ₊₁ + f(xₙ)/f'(xₙ)
For this function, it is:
f(x) = 1/3x³+1/2x²+8
f'(x) = 2/3x²+x
For x1=-3,
f(x1) = 1/3x³+1/2x²+8 = -9 + 4.5 + 8 =3.5
f'(x1) = 2/3x²+x = 3
x2 = x1 + f(x1)/f'(x1) = -1.8
Therefore, x2 = -1.8
Then, the third approximation is x_3 is
x3 = x2 + f(x2)/f'(x2) = -1.8+ (7.72/0.36)
x3 = 19.6
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The anderson family has many pets.They have 5 dogs,3 cats, and 2 rabbits.The ratio compare the number of rabbits to the number of dogs is _____ to _____
Answer: 2:5
Step-by-step explanation: There are 2 rabbits and 5 dogs.
20 points and brainly
Answer: B
Step-by-step explanation:
Find the nth term of the sequence
20, 30, 42, 56, 72....
Please hurry it's due in an hour!
mendel accounted for the observation that traits which had disappeared in the f1 generation reappeared in the f2 generation by proposing that (fill in the blank)
Traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1 generation.
Given,
In the question:
Mendel accounted for the observation that traits which had disappeared in the f1 generation reappeared in the f2 generation by proposing that___
Now, According to the question:
Fill up the above blank:
Mendel accounted for the observation that traits which had disappeared in the f1 generation reappeared in the f2 generation by proposing that__
Solution:
In the Mendel’s experiment, some traits which were absent in the F1 generation appeared in the second generation cross. By this he concluded, that the traits expressed in the F1 generation were dominant and hence they capped the expression of traits associated with recessive allele. He classified the traits in F2 generation as recessive, because these traits can occur only when they are in pair i.e they form individuals with homozygous recessive genotype.
For instance – If “R” is allele for dominant red color trait and “r” is the allele for recessive white color trait, then the cross between true breeding red flowers and white flowers will produce following offspring
RR * rr
Rr, Rr, Rr, Rr
Thus, in F1 generation all the offspring are heterozygous red
F2 generation-
Rr * Rr
RR, Rr, Rr, rr
The recessive trait of white colored flower reappears in second generation.
Hence, Traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1 generation.
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Joseph claims that a scatterplot in which the y-values increase as the x-values increase must have a linear association. Amy claims that the scatterplot could have a nonlinear association. Which statement about their claims is true?
Joseph is correct because only a line will increase along the whole data set. The scatterplot will have a positive, linear association.
Joseph is correct because only a line will decrease along the whole data set. The scatterplot will have a negative, linear association.
Amy is correct because a nonlinear association could increase along the whole data set, while being steeper in some parts than others. The scatterplot could be linear or nonlinear.
Amy is correct because only a nonlinear association could increase along the whole data set. A line has the same slope at any point, but a curve can get steeper at different points.
Amy is correct because a scatterplot in which the y-values increase as the x-values increase can have a nonlinear association. A linear association would be a straight line, but a nonlinear association could have a curved pattern where the increase is steeper in some parts and less steep in others. Therefore, the scatterplot could be linear or nonlinear.
Amy is correct because a scatterplot in which the y-values increase as the x-values increase can have a nonlinear association. While a linear association would show a straight line, a nonlinear association can exhibit various patterns such as curves, exponential growth, or logarithmic growth. The scatterplot could have a linear or nonlinear association depending on the underlying relationship between the variables.
Therefore, Joseph's claim that a linear association is the only possibility is incorrect. Amy's claim acknowledges the possibility of a nonlinear association where the increase in y-values may vary in different parts of the data set.
Amy is correct because a scatterplot in which the y-values increase as the x-values increase can have a nonlinear association. A linear association would be a straight line, but a nonlinear association could have a curved pattern where the increase is steeper in some parts and less steep in others. Therefore, the scatterplot could be linear or nonlinear.
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If f(x) = 3x²+2 and g(x)=x2-9, find (f- g)(x).
Answer:
Step-by-step explanation:
Depending on whether or not the g(x) is x^2 or 2x, I have both ways.
If g(x) is x^2 - 9...
--> (3x^2 + 2) - (x^2 - 9) = 2x^2 + 11
If g(x) is 2x...
--> (3x^2 + 2) - (2x - 9) = 3x^2 - 2x + 11
Hope this helps!
PLEASE HELP ASAP I NEED IT IN AT LEAST 5 MIN HELP
Answer:
it is the last one or third one
After the correct formula for a reactant in an equation has been written, the:A. Subscripts are adjusted to balance the equationB. Formula should not be changedC. Same formula must appear as the productD. Symbols in the formula must not appear on the product side of the equation
After the correct formula for a reactant in an equation has been written, The solution is balanced by adjusting the subscripts.
It is necessary to change the subscripts in order to balance an equation once the proper formula for a reactant has been written. Make sure there are the same amount of atoms of each element on the reactant and product sides of the equation in order to balance an equation. The chemical formula itself shouldn't be changed in order to achieve this balance, and it might or might not show up on the product side of the equation. However, changing the subscripts is essential. Moreover, provided that they are balanced, the formula's figures may be placed on either side of the equation.
Therefore, after the correct formula for a reactant in an equation has been written, The solution is balanced by adjusting the subscripts.
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The medicinal thermometer commonly used in homes can be read to pm0.1°F, whereas those in the doctor's office may be accurate to pm0.1°C. In degrees Celsius, express the percent error expected from each of these thermometers in measuring a person's body temperature of 38.7°C.
Correct question is;
The medical thermometer commonly used in homes can be read +/-0.1 °F, whereas those in the doctor's office may be accurate to +/- 0.1 C in degrees Celsius, express the percent error expected from each of these thermometers in measuring a person's body temperature of 38.9 °C
Answer:
A) percent error in homes = 0.144 %
B) percent error in doctors office = 0.257 %
Step-by-step explanation:
A) Temperature is 38.9° C
Converting to Fahrenheit using the formula; (°C × 9/5) + 32
So;
(38.9°C × 9/5) + 32 = 102.02 °F
Since thermometer in homes can be read to +/-0.1 °F, then
Expected values = 102.02 +/- 0.1 = 102.12 °F or 101.92 °F
Since we want to find the error from °C, let's convert to °C.
We will use 101.92 °F.
Thus; 102.12 °F = (101.92 - 32) × 5/9 = 38.844 °C
Thus percent error = (38.9 - 38.844)/38.9) × 100% = 0.144 %
B) Temperature is 38.9 °C
Since thermometer in Doctors office can be +/- 0.1 °C, then;
Expected values = 38.9 +/- 0.1 = 38.8 °C or 39 °C.
We will use 38.8°C
Thus;
percent error = (38.9 - 38.8)/38.9) × 100% = 0.257 %
Brainliest answer to the quickest and most accurate response
(7x+14)+(4x-22)=180
11x-18=180
11x=198
x=18
(4)(18)-22
50
the small angles are 50
(3y+11)+10y=180
13y+11=180
13y=169
y=13
(10)(13)
130
the large angles are 130
proof:
(130(2))=(50(2))= 360
A square carpet covers 75% of the area of the floor.The floor is 8 meters by 8 meters. (a) What are the dimensions of the carpet? (b) What area of the floor is not covered by carpet?
Answer:
The dimensions of the carpet are 4√3m by 4√3m.
16m² are not covered by the carpet.
Step-by-step explanation:
The area of an 8m by 8m floor is 64m².
\(8*8=64\)
A)
First, 75% of that area is 48m².
\(64*0.75=48\)
Now we need to find the dimensions of the square carpet. Because it is a square, the length and width have to be the same.
\(x*x=48\\x^2=48\\x=\sqrt{48}\)
There's 2 ways to simplify that further as it is not a perfect square. Either just use a calculator to find the root, or factor it out. I won't show how to factor that here as it's not directly relevant, but I can explain it if you're interested.
The 2 solutions are:
\(x=6.9282...\\x=4\sqrt{3}\)
The dimensions of the carpet are 4√3m by 4√3m.
B)
Now to find the area that is not covered, just subtract the area that is covered from the total.
\(64-48=16\)
16m² are not covered by the carpet.
can someone tell me how to do this plz
A34*35
3456
=2340
Step-by-step explanation:
e=mc^2
The amount of medicine in this glass is directly proportional to the
cube of its depth d.
the glass is 6 cm high, and has capacity 40 ml.
a) find the amount of medieine needed to fill the glass to a depth
of 4 cm.
b) jimmy needs 30 ml of medicine. to what depth should the glass be filled?
Therefore, (a) the amount of medicine needed to fill the glass to a depth of 4 cm is 426.67 ml. (b) The glass should be filled to a depth of 2.38 cm if Jimmy needs 30 ml of medicine.
In this question, we are given that the amount of medicine in the glass is directly proportional to the cube of its depth d. The glass is 6 cm high and has a capacity of 40 ml. We need to find out the amount of medicine needed to fill the glass to a depth of 4 cm and to what depth the glass should be filled if Jimmy needs 30 ml of medicine.
To solve part (a), we can use the formula for the volume of a cube, which is V = l x w x h, where l, w, and h are the length, width, and height of the cube, respectively. In this case, the glass is a rectangular prism with a height of 6 cm and a capacity of 40 ml, so we can find the length and width using the formula for the volume of a rectangular prism, which is V = l x w x h. Thus, we have:
40 ml = l x w x 6 cm
Solving for lw, we get:
lw = 40/6 = 20/3
Now, we know that the amount of medicine is directly proportional to the cube of the depth d. Thus, we can set up the proportion:
(amount of medicine) / (d^3) = k,
where k is the constant of proportionality. Since the glass is filled to a depth of 4 cm, we have:
(amount of medicine) / (4^3) = k.
To solve for the amount of medicine, we can plug in the value of k we found earlier:
(amount of medicine) / 64 = 20/3
Solving for the amount of medicine, we get:
(amount of medicine) = (64 x 20)/3 = 426.67 ml.
To solve part (b), we need to find the depth d to which the glass should be filled if Jimmy needs 30 ml of medicine. We can again use the proportion:
(amount of medicine) / (d^3) = k.
Since we know the amount of medicine and k, we can solve for d:
30 ml / (d^3) = 20/3
Solving for d, we get:
d = (30 x 3 / 20)^(1/3) = 2.38 cm.
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