The relative frequency of a class is computed by dividing the frequency of the class by the total number of observations in the data set. This statement (C) is true.
What is the relative frequency?
The relative frequency is a statistical term that represents the percentage of times a certain event occurs in an experiment or study. It is calculated by dividing the number of times an event occurred by the total number of trials in the experiment or study.
The class width is the difference between the upper limit and lower limit of a class. Class width is used to construct frequency histograms, cumulative frequency curves, and frequency polygons.The frequency of a class is the number of times the data falls within a certain class.
So, to compute the relative frequency of a class, divide the frequency of the class by the total number of observations in the data set. Therefore, option c, "dividing the frequency of the class by the total number of observations in the data set," is correct.
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For a party, Katrina wants to make a nut mixture
of pecans and cashews. Pecans (p) sell for $4.99
per pound and cashews (c) sell for $3.79 per
pound. She has $35 to spend on the nut
mixture.
Write the equation that models this situation.
The equation that represents the given equation model is: 4.99p + 3.79c = 35
How to find the linear equation model?The most common form of representing a linear equation model is:
y = mx + b
where:
m is slope
b is y-intercept
Let the number of pounds of Pecans she can buy be p
Let the number of pounds of cashews she can buy be c
We are told that:
Cost of pecans = $4.99 per pound
Cost of Cashews = $3.79 per pound
Thus, for $35 to spend we have the equation as:
4.99p + 3.79c = 35
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The function f
has reference points (0, 1)
and (1, 2). What do the reference points become for the transformation given by g
?
g(x)=2⋅f(x)+2
the reference points for the transformation given by g(x) = 2*f(x) + 2 are (0, 4) and (1, 6).
The given function f has reference points (0, 1) and (1, 2). To find the reference points for the transformation given by g(x) = 2*f(x) + 2, we need to apply the transformation to each of the original reference points.
For the first reference point (0, 1), we have:
g(0) = 2f(0) + 2 = 21 + 2 = 4
So the transformed point is (0, 4).
For the second reference point (1, 2), we have:
g(1) = 2f(1) + 2 = 22 + 2 = 6
So the transformed point is (1, 6).
Therefore, the reference points for the transformation given by g(x) = 2*f(x) + 2 are (0, 4) and (1, 6).
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a sprinkler distributes water in a circular pattern, supplying water to a depth of feet per hour at a distance of r feet from the sprinkler. a. what is the total amount of water supplied per hour inside of a circle of radius 14? per hour b. what is the total amount of water that goes throught the sprinkler per hour? per hour calculate the total amount of water supplied per hour inside a circle of radius , then let .
The total amount of water supplied per hour inside a circle of radius 14 is approximately79.90 ft^3 per hour, and the total amount of water that goes through the sprinkler per hour is approximately 2π ft^3 per hour. As R approaches infinity, the total amount of water supplied per hour approaches 2 ft^3 per hour.
To find the total amount of water supplied per hour inside of a circle of radius 14, we need to integrate the function e^(-r) over the region of the circle total amount of water = ∫∫ e^(-r) dA
where the integration is over the circular region of radius 14, and dA is the differential area element.
Using polar coordinates, we can write dA = r dr dθ, and the limits of integration are 0 ≤ r ≤ 14 and 0 ≤ θ ≤ 2π. Substituting these values, we get:
total amount of water = ∫(0 to 2π) ∫(0 to 14) e^(-r) r dr dθ
Integrating with respect to r first, we get:
total amount of water = ∫(0 to 2π) [-e^(-r)](0 to 14) dθ
total amount of water = ∫(0 to 2π) (1 - e^(-14)) dθ
total amount of water = (1 - e^(-14)) ∫(0 to 2π) dθ
total amount of water = 2π(1 - e^(-14))
Thus, the total amount of water supplied per hour inside of a circle of radius 14 is approximately 79.90 ft^3 per hour.
To find the total amount of water that goes through the sprinkler per hour, we need to integrate the function e^(-r) over the entire plane:
total amount of water = ∫∫ e^(-r) dA
where the integration is over the entire plane, and dA is the differential area element.
Using polar coordinates, we can write dA = r dr dθ, and the limits of integration are 0 ≤ r ≤ ∞ and 0 ≤ θ ≤ 2π. Substituting these values, we get:
total amount of water = ∫(0 to 2π) ∫(0 to ∞) e^(-r) r dr dθ
Integrating with respect to r first, we get:
total amount of water = ∫(0 to 2π) [-e^(-r)](0 to ∞) dθ
total amount of water = ∫(0 to 2π) (1) dθ
total amount of water = 2π
Thus, the total amount of water that goes through the sprinkler per hour is exactly 2π ft^3 per hour.
To calculate the total amount of water supplied per hour inside a circle of radius R, then let R → ∞, we can use the result from part B and multiply it by the ratio of the areas of the two circles:
total amount of water = (total amount of water inside circle of radius R) × (area of circle of radius R)/(area of entire plane)
total amount of water = (2πR^2(1-e^(-R))) / (πR^2)
total amount of water = 2(1-e^(-R))
Now we can let R → ∞:
total amount of water = 2
Thus, the total amount of water supplied per hour inside a circle of infinite radius is exactly 2 ft^3 per hour.
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--The given question is incomplete, the complete question is given
"A sprinkler distributes water in a circular pattern, supplying water to a depth of e^-r feet per hour at a distance of r feet from the sprinkler. A. What is the total amount of water supplied per hour inside of a circle of radius 14? ft^3 per hour B. What is the total amount of water that goes through the sprinkler per hour? ft^3 per hour Calculate the total amount of water supplied per hour inside a circle of radius R, then let R rightarrow infinity."--
Vin has saved $ 62 so far this month. His goal is to save at least $ 100 by the end of the month. How much can Vin save from now until the end of the month to reach his goal?
1. Let s represent the amount Vin saves from now until the end of
the month. Write an expression that represents Vin’s total savings
this month.
2. Write an inequality that shows that Vin’s total savings for the
month are at least $ 100.
3. Solve the inequality from Exercise 2 and show
all of the possible solutions on the number line.
4. How much can Vin save from now until the end of the month to
meet his goal?
1. Let us suppose the amount saved = s. 2. The inequality is 62 + s ≥ 100. 3. The value of s is: s ≥ 38. 4. Vin can save at least $38 from now until the end of the month to meet his goal of saving at least $100.
What is inequality?A mathematical statement illustrating the relationship between two amounts or expressions that are not always equal is known as an inequality. To represent the connection between the two values, an inequality may employ a number of symbols, including (less than), > (greater than), (less than or equal to), or (greater than or equal to). In algebra and other branches of mathematics, inequalities are frequently used to indicate restrictions, such as limitations on a variable, and to address issues with variables or unknown numbers. An inequality's solution, which may be a range of values rather than a single value, is the collection of all values that meet the inequality.
1. Let us suppose the amount saved = s.
2. The inequality is 62 + s ≥ 100
3. Solving for s we have:
62 + s ≥ 100
s ≥ 100 - 62
s ≥ 38
On the number line, all values greater than or equal to 38 would satisfy this inequality.
4. Vin can save at least $38 from now until the end of the month to meet his goal of saving at least $100.
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Casey buys a bracelet. She pays for the bracelet and pays $0. 72 $0. 72dollar sign, 0, point, 72 in sales tax. The sales tax rate is 6% percent. What is the original price of the bracelet, before tax?
Answer:
$12
Step-by-step explanation:
You want to know the amount that has a tax of $0.72 when the tax rate is 6%.
TaxThe tax is computed by multiplying the price by the tax rate.
tax = price × (tax rate)
$0.72 = price × 0.06
price = $0.72/0.06 = $(72/6) = $12
The original price of the bracelet is $12.
2. Mrs. Garcia had two thirds of a pumpkin pie left. Her sons ate of three eighths
what was left. What fraction of the whole pie did her
sons eat?
Answer: 1 1/24
Step-by-step explanation:
2/3 - 3/8 = 25/24. Reduce it and you get 1 1/24
Consider the basis of . Let be the linear transformation such thatSet. Compute .Consider the basis B = ([ 0 ] , [ 0 ] , [ 1 ] of R^3. [ 0 ] [ -1 ] [ -2 ][ 1 ] [ -1 ] [ 1 ]Let T:R^3→R^2 be the linear transformation such that T( [0] ) = [1] , T ([ 0 ]) = [3] , T([ 1 ]) = [ 0][0] [1] [ -1] [2] [ -2] [-1][1] [ -1] [ 1 ]Set v = [ -1 ] Compute T(v).[ 1 ][ -2 ]T(v) = [ .... ]
The value of T(v), express v as linear combination in the basis B and the matrix representation of T obtain is T(v) = [4, -4].
To find T(v), we need to express v as a linear combination of the basis vectors of R^3 with respect to B:
v = (-1)[0] + (-1)[0] + (1)[1]
This means that the coordinate vector of v with respect to B is [-1, -1, 1].
To find the matrix representation of T with respect to the standard bases of R^3 and R^2, we can apply T to each of the basis vectors:
T([1, 0, 0]) = [1, 3]
T([0, 1, 0]) = [-1, 1]
T([0, 0, 1]) = [2, -2]
We can arrange the results in a matrix:
[1 -1 2]
[3 1 -2]
The matrix [1 -1 2; 3 1 -2] represents T with respect to the standard bases of R^3 and R^2.
To find T(v), we can multiply the matrix representation of T with the coordinate vector of v with respect to B:
T(v) = [1 -1 2; 3 1 -2] * [-1; -1; 1] = [4; -4]
Therefore, T(v) = [4, -4].
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Please view the image to understand the problem.
The table of values is completed below and the function of the sequence is T(n) = n(n + 2)
Completing the table of valuesFrom the question, we have the following parameters that can be used in our computation:
Pattern Counters
1 3
2 8
3 15
4 24
When the pattern is 5, we have
Counters(5) = 5 * (6 + 1)
So, we have
Counters = 35
So, the table is
Pattern number 1 2 3 4 5
Number of counters 3 8 15 24 35
The expression for the n-th termIn (a), we have
Counters(5) = 5 * (6 + 1)
Express 6 as 5 + 1
So, we have
Counters(5) = 5 * (5 + 1 + 1)
So, we have
Counters(n) = n * (n + 1 + 1)
As an n-th term, we have
T(n) = n(n + 2)
Hence, the function is T(n) = n(n + 2)
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Cuantos huevos representa los 3/5 de 4/7 de 420 docenas
Para resolver este problema, primero tenemos que multiplicar las fracciones:
3/5 x 4/7 = 12/35
Luego, encontramos cuántas docenas son 12/35 de 420 docenas:
(12/35) x 420 = 144
Así que 3/5 de 4/7 de 420 docenas (que es equivalente a 12/35 de 420 docenas) representa 144 docenas de huevos.
Para encontrar el número total de huevos, multiplicamos 144 docenas por 12 huevos por docena:
144 x 12 = 1,728
Por lo tanto, 3/5 de 4/7 de 420 docenas representa 1,728 huevos.
HELP DUE IN 2 HOURS 4.7y^2+5.3+4y-3.3-2y+y^2
Answer:
5.7y^2 +2y +2
Step-by-step explanation:
You want to simplify the expression 4.7y^2+5.3+4y-3.3-2y+y^2.
SimplifyIdentify like terms and combine their coefficients:
4.7y^2+5.3+4y-3.3-2y+y^2
= (4.7 +1)y^2 +(4 -2)y +(5.3 -3.3)
= 5.7y^2 +2y +2
Based on your knowledge of the two data sets described below, would you expect a scatter plot describing the
two data sets to have a positive, a negative, or no correlation?
amount of gas in a car's gas tank and the total distance the car has traveled since last being filled with gas
Based on my knowledge, I would expect a negative correlation between the amount of gas in a car's gas tank and the total distance the car has traveled since last being filled with gas.
As the car travels, the amount of gas in the tank decreases. Thus, if the car has traveled a long distance since being filled up, it is likely that there is less gas in the tank. Therefore, there should be a negative correlation between the amount of gas in the tank and the distance traveled, meaning that as the distance traveled increases, the amount of gas in the tank decreases.
A scatter plot of these two variables should show a downward-sloping trend, indicating the negative correlation.
Therefore the correct answer is negative correlation.
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!!!TIMED PLEASE HELP AS FAST AS POSSIBLE!!!!
Answer: 53
Step-by-step explanation:
90- 37 = 53
Two angles are Complementary when they add up to 90 degrees (a Right Angle)
compute{i-j j-k k-i]
Answer:
Step-by-step explanation:
(i-j)×(j-k)×(k-i)
{(i×j)-(i×k)-(j×j)+(j×k)}×(k-i)
(k+j-i)×(k-i)
( j+i+k-j)
(i+k)
Explain how to determine whether two ratios are equivalent
Answer:
Ratios are fractions, right? Set the two fractions equal to each other and then cross-multiply them. If each side of the equation is equal, then the ratios are equal; if not, then the ratios are not equivalent.
Ex. 1
Comparing ratios 4:2 and 2:1
[tex]\frac{4}{2} = \frac{2}{1}[/tex]
Cross-multiplying, we get 4 = 4, but we can also simplify each side of the equation to get 2 = 2.
Ex. 2
Comparing ratios 3:5 and 6:7
[tex]\frac{3}{5} =? \frac{6}{7}[/tex]
Cross-multiply, we get 21 = 30, so the ratios are not equal. This is an example of a case where you can't simplify the ratios.
Ex. 3
Comparing rations 5:12 and 10:24
[tex]\frac{5}{12} = \frac{10}{24}[/tex]
Cross-multiply, 120 = 120 so the ratios are equal.
Hope this helps!
Find the surface area of the triangular prism shown below. units^2 2 5, 5, 7, 4, 6
Therefore, the surface area of the given triangular prism is approximately 126.56 square units.
What is surface area?Surface area is a measure of the total area that the surface of a three-dimensional object occupies. It is the sum of the areas of all the faces or surfaces of an object. Surface area is usually expressed in square units, such as square inches, square centimeters, or square meters, depending on the unit system being used.
For example, if you have a cube with side length "s", its surface area can be calculated by finding the area of each face and adding them together. Since a cube has six square faces of equal size, the formula for its surface area would be:
Surface Area of Cube = 6s²
by the question.
To find the surface area of a triangular prism, we need to calculate the area of all its faces and then add them together.
First, let's find the area of the two triangular bases. Each base is a right triangle with base 5, height 4, and hypotenuse 7. We can use the Pythagorean theorem to calculate the height of the triangle:
[tex]4^2 + (5/2)^2 = h^2[/tex]
[tex]16 + 6.25 = h^2[/tex]
[tex]22.25 = h^2[/tex]
[tex]h = \sqrt(22.25)[/tex]= 4.71
So, the area of each base is:
[tex]A = 1/2 * base * height = 1/2 * 5 * 4.71 = 11.78[/tex]
Next, we need to find the area of the three rectangular faces. The two congruent rectangular faces have dimensions of 5 by 6, and the remaining rectangular face has dimensions of 7 by 6. The area of each rectangular face is simply the product of its dimensions:
[tex]A1 = 5 * 6 = 30[/tex]
[tex]A2 = 5 * 6 = 30[/tex]
[tex]A3 = 7 * 6 = 42[/tex]
Finally, we can calculate the total surface area of the prism by adding up the areas of all five faces:
[tex]Total surface area = 2A(base) + A1 + A2 + A3[/tex]
[tex]Total surface area = 2(11.78) + 30 + 30 + 42[/tex]
[tex]Total surface area =126.56[/tex]
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Evaluate-+61
Enter your answer in the box.
- 7 when x = 18
The expression 61+x when x = 18 evaluates to 79.
What is expression?Expression is a combination of numbers, symbols and operators that represent a mathematical quantity or operation.
To find the value of the expression, we must first substitute 18 in for x. To evaluate this expression, we must add 61 and 18. 61+18 = 79. Therefore, the expression 61+x when x = 18 evaluates to 79.
To verify the answer, we can use the distributive property of multiplication to expand the expression. 61+x is equivalent to 61+18, which can be written as
61+18 = 61+1*18.
We can now distribute the 1 to the 18,
so 61+1*18 = 61+18 = 79.
Therefore, the expression 61+x when x = 18 evaluates to 79.
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Question: Evaluate-61+x
Enter your answer in the box.
Find the value of equation, when x = 18.
Find the area of the shaded region:
6 m
4 m
8 m
12 m
Therefore, the area of the shaded region is 72 square meters.
What is Triangle?A triangle is a three-sided polygon that is formed by connecting three straight lines or line segments. It is a basic geometric shape that is commonly studied in mathematics, geometry, and trigonometry. Triangles have a wide range of properties and characteristics that are important in various fields of study, including their angles, sides, and area. Triangles can be classified based on their angles (as acute, right, or obtuse triangles) or based on their sides (as equilateral, isosceles, or scalene triangles). The study of triangles is fundamental in many areas of mathematics and physics and is also important in practical applications such as engineering, architecture, and surveying.
by the question.
To find the area of the shaded region, we first need to find the area of the entire rectangle. The area of a rectangle is given by the formula: length x width.
The length of the rectangle is 12 meters, and the width is 8 meters, so the area of the entire rectangle is:
12m x 8m = 96 square meters
Next, we need to find the area of the triangle that is not shaded. The base of the triangle is 6 meters, and the height is 8 meters. The area of a triangle is given by the formula: 1/2 x base x height.
1/2 x 6m x 8m = 24 square meters
Finally, we can find the area of the shaded region by subtracting the area of the triangle from the area of the entire rectangle:
96 square meters - 24 square meters = 72 square meters
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A farmer is tracking the amount of corn his land is yielding each year. He finds that the function f(x)=-x^2+20x+50 models the crops in pounds per acre over x years. Find and interpret the average rate of change from year 1 to year 10.
The average rate of change from year 1 to year 10 is: (150 - 69)/9 = 9 based on the given function.
The amount of maize the farmer's land is yielding in pounds per acre over x years is represented by the function f(x)=[tex]-x^2+20x+50[/tex].
We must compute the change in f(x) for the range [1,10] and divide by the interval's length to determine the average rate of change from year 1 to year 10.
f(1) = [tex]-(1)^2[/tex] + 20(1) + 50 = 69
f(10) = [tex]-(10)^2[/tex] + 20(10) + 50 = 150
Hence, the change in f(x) throughout the range [1,10] is as follows:
f(10) - f(1) = 150 - 69 = 81
And the interval [1,10] has the following length:
10 - 1 = 9
Thus, from year one to year ten, the average rate of change is:
(150 - 69)/9 = 9
By interpreting the average rate of change, we can conclude that from year 1 to year 10, the farmer's land's yield of maize per acre is growing at a pace of 9 pounds each year. This indicates that, on average, throughout the course of these ten years, the farmer can anticipate harvesting 9 extra pounds of maize per acre.
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You have $
48
to order pizza for you and your friends. Slices of pizza are $
3.20
each. The inequality representing this scenario is 3.20
n
≤
48
, with n
representing the number of pizza slices you can order.
Select all the numbers that represent the amount of pizza slices you can order for you and your friends.
It's important to note that ordering more than 15 slices would exceed your budget of $48, while ordering fewer slices would allow you to save money for other expenses.
To determine how many pizza slices you can order with $48, we divide the total amount of money by the cost of each slice of pizza, which is $3.20. This gives us:
48 ÷ 3.20 = 15
So you can order up to 15 slices of pizza with $48. However, since you cannot order a fraction of a slice, the actual number of slices must be a whole number. Therefore, the possible numbers of pizza slices you can order are:
0 slices
1 slice
2 slices
3 slices
4 slices
5 slices
6 slices
7 slices
8 slices
9 slices
10 slices
11 slices
12 slices
13 slices
14 slices
15 slices
So, any of the above numbers represents the amount of pizza slices you can order for you and your friends. It's important to note that ordering more than 15 slices would exceed your budget of $48, while ordering fewer slices would allow you to save money for other expenses.
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99 cookies were diveded into three piles in the ratios of 1:1/2:1/3. how many cookies were in the middle pile
To the total of 99 cookies, there are 27 cookies in middle pile.
Let's call the number of cookies in the first pile "x". Then, the number of cookies in the second pile is 1/2 of x, or (1/2)x, and the number of cookies in the third pile is 1/3 of x, or (1/3)x.
We know that the total number of cookies is 99, so we can write an equation:
x + (1/2)x + (1/3)x = 99
To solve for x, we can first find a common denominator:
(6/6)x + (3/6)x + (2/6)x = 99
(11/6)x = 99
x = (6/11) * 99
x = 54
So, there are 54 cookies in the first pile, (1/2)x = (1/2)*54 = 27 cookies in the second pile, and (1/3)x = (1/3)*54 = 18 cookies in the third pile. In the middle pile there are 27 cookies.
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in a circular group O is the centre ,AB the diameter,C and D are any two points on the circumference so that C is the mid - point of arc BD prove that triangle AOC and triangle COA are equal in area
Step-by-step explanation:
1st method:-
Using congurency:-
In ∆AOC AND ∆COD
1) CO= CO {common side}
2) <OAC = <ODC { inscribed angel on same base CO}
3)OD = OC {radius}
4)∆AOC ≅ ∆COD {SAS fact}
5)∆AOC = ∆ COD {area of congurent traingle is equal}
2nd method:-
Using property of traingles:-
Construction:- Join DA and CB
<ACB = 90° { angle substended by diameter}
CO⊥AB
Now we know that,
Area of traingle = 1/2 B*H
CO is height { of both traingle's}
AO is base {of both traingle's}
Now, ∆AOC= 1/2*CO*AO--1
and, ∆ COD = 1/2 *CO*AO--2
∆AOC= ∆COD {from above 1 and 2}
1. In voting for the fifth-grade class president, only one third of the students
cast votes. What fraction of the whole class voted for Tim? for
Selena? Who received more votes?
Answer:
We cannot determine the exact number of votes for Tim or Selena without additional information. However, we can determine the fraction of the whole class that voted for each candidate based on the given information.
If only one third of the students cast votes, that means that two thirds did not vote. Therefore, the fraction of the whole class that voted for Tim and Selena is each equal to one third of the total number of students.
To calculate these fractions, we can use the following formula:
Fraction of class = Number of students who voted / Total number of students
Let's assume that there are N students in the class. Then, the number of students who voted for Tim is (1/3)N, and the number of students who voted for Selena is also (1/3)N.
So, the fraction of the whole class that voted for Tim is:
(1/3)N / N = 1/3
Similarly, the fraction of the whole class that voted for Selena is also 1/3.
Since we don't know the exact number of votes for each candidate, we cannot determine who received more votes.
Any two angles are _____ if the sum of their measures is 90° or ____ if the sum of their measures is 180°
1)
adjacent angles
vertical angles
complementary
supplementary
right angles
consider a deck of 52 cards. one deals 4 cards in a row with no replacement. what is the probability that the first three cards are 3 aces and the last one is a king ?
The probability of the first three cards being 3 aces and the last one being a king is 1/66,300.
The probability of drawing an ace from a deck of 52 cards is 4/52 (since there are 4 aces in the deck), and the probability of drawing a king is 4/52 as well.
Since the cards are dealt with no replacement, the probability of drawing three aces in a row is
(4/52) × (3/51) × (2/50) = 1/5525
This is because after each card is drawn, there is one less ace in the deck, and one less card overall.
Now, we need to multiply this probability by the probability of drawing a king as the fourth card. Since there are only 48 cards left in the deck at this point (since three cards have already been drawn), the probability of drawing a king is
4/48 = 1/12
Therefore, the probability of drawing 3 aces and 1 king in a row is
(1/5525) × (1/12) = 1/66300
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What fraction of a semicircle is an angle that measures 29pi/18 radians? Express your answer as a fraction in simplest terms.
Answer:
A semicircle has an angle measure of pi radians. Therefore, the fraction of a semicircle that an angle of 29pi/18 radians represents is:
(29pi/18) / pi = 29/18
So the fraction of a semicircle that an angle of 29pi/18 radians represents is 29/18.
Step-by-step explanation:
Can someone help me with this I’ll give you brainlest
Answer:
g(4)=-2 and g(-4)=1
Step-by-step explanation:
In the first week of July, a record 1,060 people went to the local swimming pool. In the second week, 110 fewer people went to the pool than in the first week. In the third week,130 more people went to the pool than in the second week. In the fourth week, 232 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four weeks?
The percent decrease in the number of people who went to the local swimming pool over four weeks, starting with a record high of 1,060 people in the first week, was 20%.
To find the percent decrease in the number of people who went to the pool over the four weeks, we need to first find the total number of people who went to the pool over the four weeks and then calculate the percentage decrease from the first week to the fourth week.
Number of people in the first week = 1,060
Number of people in the second week = 1,060 - 110 = 950
Number of people in the third week = 950 + 130 = 1,080
Number of people in the fourth week = 1,080 - 232 = 848
Total number of people over the four weeks = 1,060 + 950 + 1,080 + 848 = 3,938
Percentage decrease in the number of people who went to the pool over the four weeks = ((1,060 - 848)/1,060) * 100% = 20%
Therefore, the percent decrease in the number of people who went to the pool over the four weeks is 20%.
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Choose the ordered pair that is a solution to the equation represented by the graph.
A. (0,-3)
B. (2,0)
C. (2,2)
D. (-3,0)
so (0,-3) and (2,0) is a solution. (2,2) and (-3,0) is not a solution. as the equation of the line passing through the points (0,-3) and (2,0) is y = (3/2)x - 3 we need to substitute points to check valid or not
what is equation ?
An equation is a mathematical statement that asserts that two expressions are equal. In other words, an equation says that one expression on the left side of the equals sign is the same as the expression on the right side of the equals sign. An equation typically includes variables
In the given question,
To determine the equation of the line passing through the points (0,-3) and (2,0), we can use the slope-intercept form of a linear equation:
y = mx + b
where m is the slope and b is the y-intercept.
The slope of the line can be found using the formula:
m = (y₂ - y₁) / (x₂ - x₁)
where (x₁, y₁) = (0,-3) and (x₂, y₂) = (2,0)
m = (0 - (-3)) / (2 - 0) = 3/2
So the equation of the line is:
y = (3/2)x - 3
Now we can check which ordered pair is a solution to this equation by plugging in the x and y values into the equation and seeing if it holds true.
A. (0,-3)
y = (3/2)x - 3
-3 = (3/2)(0) - 3
-3 = -3
This is true, so (0,-3) is a solution.
B. (2,0)
y = (3/2)x - 3
0 = (3/2)(2) - 3
0 = 0
This is true, so (2,0) is a solution.
C. (2,2)
y = (3/2)x - 3
2 = (3/2)(2) - 3
2 = 0
This is false, so (2,2) is not a solution.
D. (-3,0)
y = (3/2)x - 3
0 = (3/2)(-3) - 3
0 = -9/2
This is false, so (-3,0) is not a solution.
Therefore, the solutions to the equation represented by the graph are A. (0,-3) and B. (2,0).
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What is the cost of 4 kilograms if the unit rate is $3.25kg?
The cost of 4 kilograms is $13 if the unit rate is $3.25kg.
What is the unit rat?
The unit rate is a rate in which the second term in the ratio is 1. For example, if you have a rate of 60 miles per hour, the unit rate would be 60 miles per 1 hour, or simply 60 miles per hour. Another example is if you have a unit price of $2.50 per pound of apples, the unit rate would be $2.50 per 1 pound, or simply $2.50 per pound.
If the unit rate is $3.25/kg, then the cost of 1 kg is $3.25. To find the cost of 4 kg, we can multiply the cost of 1 kg by 4:
4 kg x $3.25/kg = $13
Therefore, the cost of 4 kilograms is $13 if the unit rate is $3.25kg.
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ratio of triangle 9:8:7, permimeter is 144 , find the measure of each side of the triangle
Step-by-step explanation:
There are (9+8+7) = 24 parts that add up to 144
each part is then 144/24 = 6
then each side is 9 parts = 9*6 = 54
8 parts = 8 * 6 = 48
7 parts 7 * 6 = 42