Answer:
The score of the dropped grade is 6
Step-by-step explanation:
To find the average of a set of numbers you need to add all the numbers and divide by how many numbers there are. The problem wants you to solve it in reverse. Let put this into an algebraic equation with a, b, c, d, and e being the variables of the test scores
(a+b+c+d+e)/5=10
Then we can multiply both sides by 5 and get
a+b+c+d+e=50
Lets assume that c is the lowest test score. To calculate the average of that we get
a+b+d+e/4=11
Doing the same thing, we know that a+b+d+e=44
Now compare the two:
a+b+c+d+e=50
a+b+d+e=44
We can now know that c=50-44=6
So, 6 is the score of the dropped quiz. Hope that helped!
The probability that a student passes the AP Stats exam is 0.57. The probability that a student passes the AP
Calculus exam is 0.43. The probability that a student passes the AP Stats exam given they passed the AP Calculus
exam is 0.85. Find the probability that a student passes both exams.
O 0.3655
O 0.4845
O 0.7544
O 1.3256
Answer:
0.3655
Step-by-step explanation:
I'm doing the assignment on ed right now
{x|x + 1 ≥ 3 and x − 6 ≤ −1}
Write the solution using interval notation
Avery's classroom has 3 round tables and 6 square tables. Each table can seat 4 students.
Students are randomly seated at the tables as they arrive to class.
What is the probability that the first student to arrive will be seated at a square table
What is the equation of the line that passes through (4, 3) and (-4, -1)?
Choices:
2x+1
y=2x+7
y=x/2 +1
y= -x/2 +7
The equation of the line that passes through (4, 3) and (-4, -1) is y = -x/2 + 5. So, correct option is A.
To find the equation of the line that passes through two given points, we use the slope-intercept form of a linear equation, which is:
y = mx + b
where m is the slope of the line and b is the y-intercept.
First, we need to find the slope of the line using the two given points. The formula for finding slope between two points is:
m = (y₂ - y₁) / (x₂ - x₁)
where (x₁, y₁) and (x₂, y₂) are the coordinates of the two points.
Substituting the given points into the formula, we get:
m = (-1 - 3) / (-4 - 4) = -4/8 = -1/2
Now we know the slope, we can use one of the given points (4, 3) and substitute the slope into the slope-intercept form of the equation and solve for b.
y = mx + b
3 = (-1/2)(4) + b
3 = -2 + b
b = 5
Therefore, the equation of the line that passes through (4, 3) and (-4, -1) is:
y = -x/2 + 5
So, correct option is A.
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Complete question is:
What is the equation of the line that passes through (4, 3) and (-4, -1)?
Choices:
y = -x/2 + 5
y=2x+7
y=x/2 +1
y= -x/2 +7
What is the slope-intercept equation of the line below?
Answer:
the answer is C hope this helps
You rent an apartment that costs $1000 per month during the first year, but the rent
is set to go up 12% per year. What would be the rent of the apartment during the 11th
year of living in the apartment? Round to the nearest tenth (if necessary).
Answer:
Submit Answer
Answer:
2320
Step-by-step explanation:
12% of 1000 is 120 so you multiple that time 11 which equals 1320 and then you add 1000 which gives you 2320
compute the value of the discriminant and give the number of real solutions of the quadratic equation
mag aral ng mabuti para may alm
Step-by-step explanation:
yan ang answer
Which is the correct label of the line? (1 point)
a
AC
O
CD
D
Ο OllA
Answer:
The correct label of the line is CD
The total amount of candy sold at Cassandra's Candy Corner can be represented by the function C(x) = 4x3 + 10x2 + 54x + 520, where x represents the number of years since the store opened. The amount of types of candy can be modeled by the linear function T(x) = 2x + 10. Which expression represents the amount of candy sold each year per type at Cassandra's Candy Corner?
2x^2 – 5x + 52
2x^2 + 5x + 52
4x^3 + 10x^2 + 52x + 510
4x^3 + 10x^2 + 56x + 530
Using polynomial division, it is found that the expression that represents the amount of candy sold each year per type at Cassandra's Candy Corner is:
\(2x^2 - 5x + 52\)
The amount of candy sold per type is given by the following division:
\(\frac{C(x)}{T(x)} = \frac{4x^3 + 10x^2 + 54x + 520}{2x + 10}\)
The denominator can be written as:
\(2x + 10 = 2(x + 5)\)
At the numerator, to see if we can simplify, we verify if x = -5 is a factor:
\(C(-5) = 4(-5)^3 + 10(-5)^2 + 54(-5) + 520 = 0\)
Since C(-5) = 0, it is a factor of the numerator, and thus, since the numerator is of the 3rd degree, it can be written as a 3 - 1 = 2nd degree polynomial multiplying x + 5:
\((ax^2 + bx + c)(x + 5) = 4x^3 + 10x^2 + 54x + 520\)
\(ax^3 + (5a + b)x^2 + (5b + c)x + 5c = 4x^3 + 10x^2 + 54x + 520\)
Equaling both sides:
\(a = 4\)
\(b = 10 - 5a = -10\)
\(5c = 520 \rightarrow c = 104\)
Thus:
\(C(x) = (4x^2 - 10x + 104)(x + 5)\)
And:
\(\frac{C(x)}{T(x)} = \frac{(4x^2 - 10x + 104)(x + 5)}{2(x + 5)} = 2x^2 - 5x + 52\)
Thus, the expression is:
\(2x^2 - 5x + 52\)
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A plastic bin contains red, yellow, and green key chains. Out of 350 key chains, 10% are yellow. Of the remaining key chains, 3/5 are green. How many red key chains are inside the bin?
Let the set A = {p, q, r}Define in extension A²Calculate Card A²Check that Card A² = (Card A) ²Card : Cardinality
SOLUTION
Giving The set
\(A=\mleft\lbrace p,q,r\mright\rbrace\)Then from cartesian coordinate of a set,
\(A^2=A\times A=\mleft\lbrace p,q,r\mright\rbrace\times\mleft\lbrace p,q,r\mright\rbrace\)Then we expand the set above
\(A^2=\mleft\lbrace(p,p\mright),(p,q),(p,r),(q,p),(q,q),(q,r),(r,p),(r,q),(r,r)\}\)The extension of a set is the set itself.
Hence
\(\begin{gathered} \text{extension A}^2=A^2 \\ \text{extension A}^2=\lbrace(p,p),(p,q),(p,r),(q,p),(q,q),(q,r),(r,p),(r,q),(r,r)\} \end{gathered}\)Extension A² = {(p,p),(p,q),(p,r),(q,p),(q,q),(q,r),(r,p),(r,q),(r,r)}
The cardinality of a set is the number of elements in the set.
\(\begin{gathered} \text{Cardinality of A}^2=cardA^2 \\ \text{cardA}^2=9 \end{gathered}\)Hence
Card A²=9
Then Card A is
\(\begin{gathered} \sin ce\text{ A=}\mleft\lbrace p,q,r\mright\rbrace \\ \text{cardinality of A=CardA=3} \\ \text{Hence } \\ (CardA)=3^2=9^{} \end{gathered}\)Therefore
\(\text{cardA}^2=(\text{card)}^2=9\)Therefore
cardA²=(card)²=9
THERE ARE 2 PARTS PLEASE ANSWER BOTH RIGHT TY HELPP!! There are 12 red cards, 17 blue cards, 14 purple cards, and 7 yellow cards in a hat.
Part A. What is the theoretical probability of drawing a purple card from the hat?
Part B.
In a trial, a card is drawn from the hat and then replaced 1,080 times. A purple card is drawn 324 times. How much greater is the experimental probability than the theoretical probability?
Enter the correct answers in the boxes.
A. The theoretical probability of drawing a purple card from the hat is ______.
B. The experimental probability of drawing a purple card is ____%
greater than the theoretical probability.
A. The theοretical prοbability οf drawing a purple card frοm the hat is 0.28 οr 28%.
B. The experimental prοbability οf drawing a purple card is 2% greater than the theοretical prοbability.
What is Experiment?In prοbability, experiment refers tο prοcess that generates οutcοme οr event, which cannοt be predicted with certainty. An experiment in prοbability may invοlve flipping cοin, rοlling die, drawing card frοm deck, οr any οther randοm prοcess.
Part A:
The tοtal number οf cards in hat is:
12 (red) + 17 (blue) + 14 (purple) + 7 (yellοw) = 50 cards
theοretical prοbability οf drawing purple card frοm hat is are:
P(purple) = number οf purple cards / tοtal number οf cards
P(purple) = 14 / 50
P(purple) = 0.28 οr 28%
Part B:
theοretical prοbability οf drawing purple card frοm hat are 0.28 οr 28%.
The experimental prοbability οf drawing a purple card is:
P(exp) = number οf times a purple card is drawn / tοtal number οf trials
P(exp) = 324 / 1080
P(exp) = 0.3 οr 30%
therefοre, difference between experimental prοbability and theοretical prοbability is:
P(exp) - P(theοretical) = 0.3 - 0.28
P(exp) - P(theοretical) = 0.02 οr 2%
Therefοre, the experimental prοbability is 2% greater than the theοretical prοbability.
A. The theοretical prοbability οf drawing a purple card frοm the hat is 0.28 οr 28%.
B. The experimental prοbability οf drawing a purple card is 2% greater than the theοretical prοbability.
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Please help me to do this i really need it.
First correct Answer gets Brainliest.
Answer:
Step-by-step explanation:
-3≤ x = graph 6
-3 > x = graph 3
x≥ 3 = graph 2
x ≤ 3 = graph 4
3 > x = graph 1
x > 3 = graph 5
the closed circles means greater/less than or equal to
the open circle means greater/less than
the direction of the arrow tells you if the number is greater than x or less than x
Identify the number line that correctly displays the solution x ≥ 3.
The correct number line that displays the solution `x ≥ 3` would be:
<------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------>
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
●------------------------------------------------>
The solution `x ≥ 3` is an inequality that means x is greater than or equal to 3. To graph this inequality on the number line, we mark the point representing the value 3 with a closed circle on the number line and draw an arrow pointing to the right to indicate that all values greater than or equal to 3 satisfy the inequality.
The closed circle at 3 indicates that 3 is included in the solution set, and the arrow to the right indicates that all values greater than 3 also satisfy the inequality. Therefore, any value of x that is equal to or greater than 3 would be considered a solution to the inequality `x ≥ 3`.
It is important to note that if the inequality was `x > 3` (without the equal sign), the closed circle at 3 would be changed to an open circle, indicating that 3 is not included in the solution set, and only values greater than 3 would be considered solutions. In conclusion, the number line provided above correctly displays the solution `x ≥ 3`.
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According to the number line, what is the distance between points A and B?
A
B
SARE
+++
-16-14-12-10 -8 -6 -4 -2
02
4
6
8 10 12 14 16
O 6 units
O 7 units
O 12 units
0 14 units
Answer:
14 units
Step-by-step explanation:
i think you just need to minus it to get the distance between it
like :
=point B - point A
=12 - (-2)
=12 +2
=14
so it 14 units
According to the number line the distance between points A and B is 14 units.
What is Number system?A number system is defined as a system of writing to express numbers.
We need to find the distance between points A and B.
The length along a line or line segment between two points on the line or line segment.
A number line is a picture of a graduated straight line that serves as visual representation of the real numbers.
The point A is at -2
The point B is at 12 on the number line
AB=OB-OA
=12-(-2)
=12+2
=14 units.
Hence, According to the number line the distance between points A and B is 14 units.
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Number of Computers
72
60
48
36
24
12
V
1 2 3 4 5 6 7 8 9 10 11 12
Number of Days
The graph shows a proportional relationship between
the number of computers produced at a factory per day.
In three days, 36 computers are produced; 48
computers are produced in 4 days; and 60 computers
are produced in 5 days.
Find the unit rate of computers per day using the graph.
Unit rate:
computers per day
The unit rate of computers per day using the graph is that 12 computers are made per day.
What is a unit rate?The unit rate is how many units of quantity correspond to the single unit of another quantity. We say that when the denominator in rate is 1, it is called unit rate. Unit rates is said to be the amount of something in each unit or per unit.
How to find the unit rate of computers per dayTo obtain the unit rate of computers sold per day using the graph, we need to obtain the slope of the graph, which is the change in y per change in x
So, it is given by:
\(\text{Slope} = \dfrac{\text{change in y}}{\text{change in x}}\)
\(\text{Slope} = \dfrac{\text{y}_2-\text{y}_1}{\text{x}_2-\text{x}_1}\)
\(\text{y}_2 = 60 , \ \text{y}_1 = 36 , \ \text{x}_2 = 5, \ \text{x}_1 = 3.\)
\(\text{Slope} = \dfrac{(60 - 36)}{(5 - 3)} = \dfrac{24}{2} = 12\)
\(\bold{Slope = 12}\)
Unit rate = 12 computers per day.
The attachment of the graph is given below.
Therefore, the unit rate of computers per day is 12.
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PLEASE FAST WILL GIVE BRANILY
A 12-foot tall tent pole is secured to the ground using a piece of rope 15 feet long from the top of the tent pole to the ground. If the tent pole makes a 90-degree angle with the ground, determine the number of feet along the ground from the tent pole to the rope.
3 feet
9 feet
19 feet
81 feet
Answer:
3 feet
Step-by-step explanation:
To solve this problem, we can use the Pythagorean theorem. Let's call the distance from the tent pole to the rope x. We can set up the following equation:
x^2 + 12^2 = 15^2
Solving for x, we get:
x = sqrt(15^2 - 12^2)
x = sqrt(9)
x = 3
Therefore, the distance from the tent pole to the rope is 3 feet.
______ income is gross income minus taxes and deductions. fill in the blank
Answer:
Net
Step-by-step explanation:
The definition of "Net Income" is a person's income after deductions and taxes. Hence it is also sometimes know as the "Take-Home" income. i.e the amount of money that you actually take home.
To ______ a function, you need to stretch or compress it
Answer: It’s to change the shape of a function
Step-by-step explanation:
To change the shape of a function, you need to stretch or compress it.
How to stretch or compress a function?In math terms, you can stretch or compress a function horizontally by multiplying x by some number before any other operations. To stretch the function, multiply by a fraction between 0 and 1. To compress the function, multiply by some number greater than 1.
Is there a function for every shape?By definition, a function has one possible output for any given input. So if you want your function defined as some y=f(x), then not every shape can be written as a function. Any shape that has two points directly above each other (relative to the x-axis) cannot be written as a function, even a piecewise one.
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Find the LCM of A= 3^2 x 5^4 x 7 and B= 3^4 x 5^3 x 7 x11
The LCM of A = 3² × 5⁴ × 7 and B = 3⁴ × 5³ × 7 × 11 is 3898125 using Prime factorization.
Given are two numbers which are showed in the prime factorized form.
A = 3² × 5⁴ × 7
B = 3⁴ × 5³ × 7 × 11
Prime factorization is the factorization of a number in terms of prime numbers.
In order to find the LCM of these two numbers, we have to first match the common primes and write down vertically when possible and then bring down the primes in each column.
A = 3² × 5³ × 5 × 7
B = 3² × 3² × 5³ × 7 × 11
Bring down the primes in each column.
LCM = 3² × 3² × 5³ × 5 × 7 × 11
= 3898125
Hence the LCM is 3898125.
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Which of the following represents the shaded area as a fraction, a decimal, and a percent of the whole?
Answer:
3
Step-by-step explanation:
Sandy needs to add trim to the carpet she has added in her game room. How many feet of wood trim will she need to complete her project if the diameter of the semicircle portion of her room is 12 ft? Wood trim is only sold in whole number quantities. Do not include units in your answer.
Given:
diameter of semi-circle = 12 ft
The number of feet needed to complete the project is the perimeter of the carpet as shown in the diagram.
We need to find the circumference of the semi-circle and then sum up the lengths.
The perimeter of a semi-circle can be found using the formula:
\(=\text{ }\pi\text{r + d}\)where r is the radius of the semi-circle and
d is the diameter of the semi-circle.
The perimeter of the semicircle is:
\(\begin{gathered} =\text{ }\pi\text{ }\times\frac{12}{2}\text{ + 12} \\ \text{= 30.85 ft} \end{gathered}\)The total perimeter would be:
\(\begin{gathered} =\text{ 6 + 7.8 + 30.85} \\ \text{= 44.65} \\ \approx\text{ 45} \end{gathered}\)Hence, Sandy would need 45 ft of wood trim for the project.
Answer:
45
The curvature of a circle is inversely proportional to its radius. What is the exact circumference of a circle with one-third the curvature of a circle of radius 1?
The circumference of a circle with one-third the curvature of a circle of radius 1 is 18.85 units
What is circumference ?
The perimeter of a circle is known as its circumference. It is the length of the circle's whole perimeter. The diameter of a circle and the constant are multiplied to get the circumference of the circle. This measurement of a circle's circumference is necessary for someone to cross a circular park or for a circle-shaped table to have a border. The units of the circumference are the same as the units of length and it is a linear value.
If a circle has a radius of 1,
the curvature is inversely proportional to this
So, the curvature= 1
A circle with a curvature of 1/3 :
radius=3
Thus, the circumference of the circle = 2 *π * radius
= 2*π * 3
= 6π
≈ 18.85 units
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A bag contains two Pennie’s,two nickels, two dimes and two quarters. If a coin selected at random from the bag, what is the probability that the coin selected will be worth less than 10 cents
FInd the measure of the arc using the picture provided , please and thanks
The measure of arc angle QTP is 204 degrees.
How to find arc angle?When a tangent and a secant intersect outside a circle then the measure of the angle formed is one-half the positive difference of the measures of the intercepted arcs.
Therefore, let's find the measure of arc angle QTP as follows:
90 = 0.5(x - 68)
90 = 0.5x - 34
0.5x = 124
x = 124 / 0.5
x = 248 degrees
Where
x = arc angle TSQ
Therefore,
arc QP = 44 degrees
Therefore,
arc QTP = 248 - 44
arc QTP = 204 degrees
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PLS HELP I WILL MARK BRAINILEST
Answer:
Let's assume the original price of the stock was x.
When the company announced it overestimated demand, the stock price fell by 40%.
So, the new price of the stock after the first decline was:
x - 0.4x = 0.6x
A few weeks later, when the seats were recalled, the stock price fell again by 60% from the new lower price of 0.6x.
So, the new price of the stock after the second decline was:
0.6x - 0.6(0.6x) = 0.24x
Given that the current stock price is $2.40, we can set up the equation:
0.24x = 2.40
Solving for x, we get:
x = 10
Therefore, the stock was originally selling for $10.
For data set 1 7 7 7 8 the mean is 6 what is the mean absolute deviation
The mean absolute deviation for the given data set is 2.
To calculate the mean absolute deviation (MAD), we first need to find the absolute difference between each data point and the mean, and then calculate the average of these absolute differences.
Given the data set: 1, 7, 7, 7, 8 and the mean is 6.
To find the absolute difference between each data point and the mean:
|1 - 6| = 5
|7 - 6| = 1
|7 - 6| = 1
|7 - 6| = 1
|8 - 6| = 2
Next, we calculate the average of these absolute differences:
(5 + 1 + 1 + 1 + 2) / 5 = 10 / 5 = 2
The mean absolute deviation measures the average distance between each data point and the mean, providing information about the spread or variability of the data. In this case, the MAD of 2 indicates that, on average, the data points deviate from the mean by approximately 2 units.
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This??? What is wrong with it?
Answer:
15.8 sq. in. of paper will be required.
Step-by-step explanation:
The problem is that a drinking cup does not have a cover, so only the lateral surface area counts.
I.e. We need only the first term.
A = pi r l = pi * 1.5 * sqrt(3^2+1.5^2)
= 15.81 sq. in.
How many inches does the tip of the minute hand travel?
ANSWER:
15.71 inches
STEP-BY-STEP EXPLANATION:
Given:
Radius: 6 inches
Angle: 150°
We are asked to calculate the length of the long run. We can calculate this distance by multiplying the ratio of the angles by the circumference, just like this:
\(\begin{gathered} \text{arc }=\frac{2\pi\cdot r\cdot\theta}{360\degree} \\ \text{ we replacing} \\ \text{arc }=\frac{2\cdot3.1415\cdot6\cdot150\degree}{360\degree} \\ \text{arc }=15.7075\cong15.71\text{ in} \end{gathered}\)The distance traveled is 15.71 inches
Does the point (0, 0) satisfy the equation y = x2?
Answer:
The point is a solution
Step-by-step explanation:
y = x^2
Substitute the point into the equation and see if it is true
0 = 0^2
0=0
True