Answer:
okeed
Step-by-step explanation:
7-3: MathXL for School: Additional Practice
7.3.AP-2
4 cm
Find the area of the shape.
7 cm
7 cm
13 cm
19 cm
The area is
(Type a whole number or a decimal.)
Answer:
1- 7cm × 7 cm - 49 cm squ.
13cm × 13 cm -169. cm square
19×19-361 cm square
The area of the shape 1 is 49 square cm, area of the shape 2 is 169 square cm and area of the shape 3 is 361 square cm.
We have to find the area of the shapes
(1) who's all dimensions are 7 cm.
(2) who's all dimensions are 13 cm.
(3) whose dimensions are 19 cm.
All the shapes will form a square because their both sides are equal.
We know the area of the square is "a x a" where 'a' is the side of the square.
Thus, the area for 1st figure is
a x a = 7 x 7
area = 49 square cm.
Area for the 2nd figure is
a x a = 13 x 13
area = 169 square cm.
Similarly, the area of 3rd figure is:
a x a = 19 x 19
area = 361 square cm.
Hence, the area of all the given shapes are 49square cm, 169 square cm and 361 square cm.
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A triangle ABC has coordinates for A (-4, 1).
Triangle A'B'C' has coordinates for A' (0-3)
What is the translation?
How many units right or left and how many units up or down?
Choose the best answer from the options below:
A
B
C
D
4 right, 4 down
4 left, 4 up
You have 1 hour to answer this question or you will be logged out.
4 left, 4 down
4 right, 4 up
The solution is Option A.
The coordinate of the triangle after the translation is given by A' ( 0 , -3 ) with 4 units right and 4 units down
What is Translation?A translation moves a shape up, down, or from side to side, but it has no effect on its appearance. A transformation is an example of translation. A transformation is a method of changing a shape's size or position. Every point in the shape is translated in the same direction by the same amount.
Given data ,
Let the coordinate of the triangle be represented as A
Now , the coordinate A = A ( -4 , 1 )
Now , the coordinate of the triangle after translation is A' ( 0 , -3 )
when there is a translation of the coordinate A by 4 units to the right , we get
A to 4 units right = A ( -4 + 4 , 1 )
The new coordinate of A = A ( 0 , 1 )
Now , A to 4 units down , we get
The coordinate of A' = A' ( 0 , 1 - 4 )
The coordinate of A' = A' ( 0 , -3 )
Hence , the translated coordinate is A' ( 0 , -3 )
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PLS HELP! 6x +5y =15
-6x - 10y =0
Answer:
X=5 y=-3
Step-by-step explanation:
A sequence is defined recursively using the formula /(n + 1) = (n) - 5. Which sequence could be generated us
this formula?
0 1, -5, 25, -125, ...
O 2, 10, 50, 250, ... bc
O 3, -2, -7, -12,.
O 4, 9, 14, 19, ...
The option O 2, 10, 50, 250, ... represents the sequence that could be generated using the given recursive formula.
The sequence that could be generated using the recursive formula n + 1 = n - 5 is:
2, 10, 50, 250, ...
To find this sequence, we start with an initial term, which in this case is 2. Then, each subsequent term is obtained by subtracting 5 from the previous term.
Let's demonstrate the process:
n = 0: 2
n = 1: (0) - 5 = -3
n = 2: (-3) - 5 = -8
n = 3: (-8) - 5 = -13
...
As we can see, the sequence starts with 2, and each term is obtained by subtracting 5 from the previous term. Therefore, the sequence that follows this pattern is 2, 10, 50, 250, ...
Hence, the option O 2, 10, 50, 250, ... represents the sequence that could be generated using the given recursive formula.
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Out of 35 students in Miss Stacey's class, 21 have a pet. What percent of the students in Miss Stacey's class have a pet? Please Hurry!!
Answer:
60%
Step-by-step explanation:
21/35 = 3/5
= 0.6
=60%
What is exactly 5/12 of a full rotation
Exactly 5/12 of a full rotation is 150, where full rotation is 360.
Define full rotation.A "full rotation," "revolution," "whole turn," or "full circle" describes this. It entails spinning around till you are once again pointing in the same direction. a rotational movement. In rotation, there is a fixed central point around which everything else revolves in a circle. 360° is a "Full Rotation." Each point in a figure is transformed into a rotation by rotating it a specific amount of degrees around another point.
Given,
Number = 5/12
Full rotation = 360
5/12 of full rotation
5/12 × 360
5 × 30
150
Exactly 5/12 of a full rotation is 150, where full rotation is 360.
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i need to know what is y and the work
Answer:
y = 3
Step-by-step explanation:
5x3=15, 15+3 =18
In January 2020 oil price was $1283 but in April 2020 the price was $1351. What is the percent increase or decrease
Answer:
5.3%
Step-by-step explanation:
% Increase = Increase / Original Number × 100.
68/1283 * 100
= 5.3%
Let f(x) = 5(3)x
The graph of f(x) is stretched vertically by a factor of 2 to form the graph of g(x).
Choose the equation of g(x).
Responses
g(x) = 10(3)xg(x) = 10(3)x
g(x) = 7(3)xg(x) = 7(3)x
g(x) = 2(3)xg(x) = 2(3)x
g(x) = 5(6)x
The required equation is g(x) = 10(3)x which is the correct answer would be an option (A).
The graph of g(x) is obtained by stretching the graph of f(x) vertically by a factor of 2.
Since the vertical stretch of a graph multiplies the y-coordinates of each point on the graph by a constant factor, the equation of g(x) must be obtained by multiplying the y-coordinate of each point on the graph of f(x) by 2.
In the given equation f(x) = 5(3)x, the y-coordinate of each point on the graph of f(x) is 5(3)x.
Thus, to stretch the graph of f(x) vertically by a factor of 2, we need to multiply this y-coordinate by 2 to get the y-coordinate of the corresponding point on the graph of g(x). This gives us the following equation for g(x):
⇒ g(x) = 2 × 5(3)x = 10(3)x
Therefore, the required equation is g(x) = 10(3)x.
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graph y > 1 – 3x.
can you help me solve it step by step pleases?
Step-by-step explanation:
1. You'll have to express the linear inequality into an equality statement (in slope-intercept form, y = mx + b) in order to graph. However, you'd have to use a dashed line because of the inequality symbol, ">"
y = – 3x + 1
2. Next, you'll have to choose two points to use for graphing. It's always safe to start with the y-intercept, (0, 1).
3. From there, you could use the slope (m = -3/1) and do the "rise over run" technique.
The only difference is going 3 units down (rise), and 1 unit to the right (run). You'll also go 3 units up (rise), 1 unit to the left (run). You need at least 2 points to create a line.4. Once you create a line, you'll have to choose a test point to see which region of the plane you need to shade. Let's choose the point of origin, (0, 0).
5. Plug these values into the inequality statement to see if it satisfies the inequality:
y > 1 – 3x
0 > 1 – 3(0)
0 > 1 – 0
0 > 1 (False statement, because 0 is not greater than 1).
Therefore, you'll have to shade the region where it doesn't contain the point, (0, 0) (shade the right side of the region).
Attached is the screenshots of the graph I created. The first one shows how I did step #3, where I started with plotting the y-intercept, (0, 1) and used the slope to plot other points and create the line. The 2nd screenshot is the final graph, where it shows the shaded region.
Hope this helps :)
Connor has already written 15 pages of his new young adult novel and he will write more today. He expects to write 2.5 pages per hour
Write an equation that shows the relationship between the number of hours Connor spends writing today,X, and the total number of pages, y.
The required equation is y = 2.5x + 15 which shows the relationship between the number of hours Connor spends writing today,X, and the total number of pages.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
We have been given that Connor has already written 15 pages of his new young adult novel and he will write more today. He expects to write 2.5 pages per hour
Let x represents the number of hours Connor spends writing today and y represents the total number of pages,
According to the given situation, we can write the equation as:
⇒ y = 2.5x + 15
Therefore, the required equation is y = 2.5x + 15.
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A survey of 400 students yielded the following information: 262 were seniors, 215 were commuters, and 150 of the seniors were commuters. How many of the 400 surveyed students were seniors or were commuters?
Out of the 400 surveyed students, 327 were either seniors or commuters.
To find the number of students who were either seniors or commuters out of the 400 surveyed students, we need to add the number of seniors and the number of commuters while avoiding double-counting those who fall into both categories.
According to the information given:
There were 262 seniors.
There were 215 commuters.
150 of the seniors were also commuters.
To avoid double-counting, we need to subtract the number of seniors who were also commuters from the total count of seniors and commuters.
Seniors or commuters = Total seniors + Total commuters - Seniors who are also commuters
= 262 + 215 - 150
= 327
Therefore, out of the 400 surveyed students, 327 were either seniors or commuters.
It's important to note that in this calculation, we accounted for the overlap between seniors and commuters (150 students who were both seniors and commuters) to avoid counting them twice.
This ensures an accurate count of the students who fall into either category.
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This is for person to help me
Answer:
5. F
6. C
Step-by-step explanation:
5. the mode is all the variables added together which is 100 or 100% divided by the number of them which is 4. 100 divided by 4 is 25 or 25%. The one that's equal to 25% is F which is soccer.
6. The relative frequency from what I can tell is the percentages of each of them. You just have to see how much space each of them takes up. C should be the answer.
Hopefully these are correct.
How do you determine a the coordinates
Arun took a taxi from his house to the airport. The taxi company charged a pick-up fee of $4 plus $4.25 per mile. The total fare was $110.25, not including the tip. How many miles was the taxi ride?
Answer:
Answer = 25 miles
Step-by-step explanation:
We can make an equation based off of this information in the form of 4.25x+4=110.25. When we solve for x we find that it equals 25.
Hope that helps! :)
Evaluate the following to four decimal places
Sin 23.4 degrees
Answer: 56554
Step-by-step explanation:
8.1 CHECK YOUR UNDERSTANDING - TURN ME IN!
1. A recent Pew Research center poll asked a random sample of teens "In general, how much time would you say
you spend with your friends in person." 36 % of the 739 respondents said "too little". We will estimate the
population proportion with 99% confidence.
a) Interpret the confidence level.
36%
b) Construct and interpret a 99% confidence interval for the population proportion.
If you created a 95% confidence interval instead, would it be narrower or wider? Explain.
c) if you created a 95% confidence interval instead would it be narrower or wider
AP STATS
a) The confidence level of 99% means that we are 99% sure that the interval contains the true population proportion.
b) The 99% confidence interval for the population proportion is given as follows: (0.3145, 0.4055). It means that we are 99% sure that the true population proportion is between 0.3145 and 0.4055.
c) The 95% confidence interval would be narrower, as it would have a lower critical value, thus the margin of error would also be lower.
What is a confidence interval of proportions?A confidence interval of proportions has the bounds given by the rule presented as follows:
\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)
In which the variables used to calculated these bounds are listed as follows:
\(\pi\) is the sample proportion, which is also the estimate of the parameter.z is the critical value.n is the sample size.The confidence level is of 99%, hence the critical value z is the value of Z that has a p-value of \(\frac{1+0.99}{2} = 0.995\), so the critical value is z = 2.575.
The parameters for this problem are given as follows:
\(\pi = 0.36, n = 739\)
The lower bound of the interval is given as follows:
0.36 - 2.575 x sqrt(0.36 x 0.64/739) = 0.3145.
The upper bound of the interval is given as follows:
0.36 + 2.575 x sqrt(0.36 x 0.64/739) = 0.4055.
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(1/x-y)-(2/2x+y)+(1/x+y)-(2/2x-y)
Answer:
6xy^2/(x-y)(x+y)(2x+y)(2x-y)
Step-by-step explanation:
1 - 2 + 1 - 2
x-y 2x+y x+y 2x-y
= take LCM
Then simplify.
Answer:
-2x+2/x
Step-by-step explanation:
Need help with this math problem please!!
Answer:
The answer is B I think !?
Step-by-step explanation:
Part 2: Refections follow the directions for each reflection, then list the coordinates of the pre-image and image in the space below.
After following the directions for each reflection the coordinates of image and pre-image are found using the rules. The coordinates of the pre image and image after reflections across x and y axis changes sign of the coordinates.
There a few certain transformation in coordinate plane where we follow a certain set of rules.
Let us say that there is a point A(x,y) in the coordinate plane.
If the point A(x,y) is reflected across the x-axis.
Then the x coordinate will not be affected. But the y coordinate will change it's sign but he value of y coordinate remains the same.
Similarly, If the point A(x,y) is reflected across the y-axis.
Then the y coordinate will not be affected. But the x coordinate will change it's sign but he value of x coordinate remains the same.
So, by following the above two rules, we can find all the point after reflection.
1. Reflecting across Y-axis.
A(2,4) → A'(-2,4)
B(4,4) → B'(-4,4)
C(5,1) → C'(-5,1)
D(1,1) → D'(-1,1)
2. Reflecting across X-axis
W(-2,0) → W'(-2,0)
X(1,-2) → X'(1,2)
Y(-2,-4) → Y'(-2,4)
Z(-2,-5) → Z'(-2,5)
3. Reflection across Y-axis
L(1,5) → L'(1,-5)
M(3,5) → M'(3,-5)
N(2,1) → N'(2,-1)
4. Reflection across X-axis
H(1,-2) → H'(1,2)
I(3,-2) → I'(3,2)
J(5,-6) → J'(5,6)
K(3,-6) → K'(3,6)
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A consumer research company wants to estimate the average cost of an airline ticket for a round trip within the continental United States. A random sample of 50 airfares was gathered and gave an average price of $438. Identify the variable
Answer
Option B is correct!
The variable here is the airfares that were gathered from the sample.
Explanation
In Statistics, variable is any number, quantity or characteristics that can be measured, counted or collected.
For this question, the data collected is the variable.
Hence, the variable here is the airfares that were gathered from the sample.
Hope this Helps!!!
1
Plot the image of point B under a dilation about point P with a scale factor of
1/2
Answer:
can you put the picture of the pre-image bc without it i cant answer
Step-by-step explanation:
Answer:
Where is the picture put a picture
Step-by-step explanation:
Sandra wants to solve the equation x2+2x−3 = 12 by using the factoring method. Which of the following should be her first step?
Answer:
her first step should be to multiply the coefficient of the first term by the constant 1 • -3 = -3
Step-by-step explanation:
i looked it up on tiger algebra lol
CHECK MY WORK PLEASE ASAP
The p-value is given as follows:
0.2297.
The correct statement is given as follows:
A. Since p-value > α, do not reject the null hypothesis.
How to obtain the test statistic?The equation for the test statistic is given as follows:
\(z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}\)
In which:
\(\overline{p}\) is the sample proportion.p is the proportion tested at the null hypothesis.n is the sample size.The parameters for this problem are given as follows:
\(n = 150, \pi = \frac{78}{150} = 0.52\)
The test statistic is given as follows:
\(z = \frac{0.52 - 0.55}{\sqrt{\frac{0.52(0.48)}{150}}}\)
z = -0.74.
The p-value of z = -0.74 on the z-table is given as follows:
0.2297.
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Given P(A) = 0.74, P(B) = 0.85 and P(A|B) = 0.84, find the vi P(A and B), rounding to the nearest thousandth, if necessary.
The value of the given statement rounding to the nearest thousandth = 0.714.
What exactly are dependent events?Dependent occurrences are ones that are dependent on previous events. The outcomes of prior events have an impact on these occurrences. Dependent events are two or more occurrences that are dependent on one another. If one event is altered by chance, another is most likely to differ.
What exactly is the distinction between dependent and independent?The independent and dependent factors are the two most crucial variables in a research experiment. The experimental has authority over the independent variable. The variable that varies in reaction toward the independent variable is known as the dependent variable.
According to the information provided:P(A) = 0.74
P(B) = 0.85
P(A|B) = 0.84
Using dependent events formula:
P(A∩B) = P(A/B) × P(B)
= 0.84 X 0.85
= 0.714
The value of the given statement rounding to the nearest thousandth = 0.714.
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which of the following is equivalent to x^2 -5x +6
Hello!
x² - 5x + 6
= (x² - 2x) + (-3x + 6)
= x(x - 2) - 3(x - 2)
= (x - 2)(x - 3)
A bottle contains 24 fluid ounces of pancake syrup. How many milliliters of pancake syrup does that bottle contain?
The milliliters of pancake syrup that that bottle contain is 709.764 millimeters.
How to calculate the value?Given that the bottle contains 24 fluid ounces of pancake syrup, it's important to note that:
1 fluid ounces = 29.5735 millimeters.
Therefore, 24 fluid ounces of pancake syrup to milliliters of pancake syrup will be:
1 fluid ounces = 29.5735 millimeters.
24 fluid = 24 × 29.5735 millimeters
= 709.764
It contains 709.764 millimeters.
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Drag each question to the correct location on the table. Classify the questions as statistical or not statistical.
Answer:
wheres the picture
Step-by-step explanation:
Answer:
picture?
Step-by-step explanation:
If a = 2 and b = 4, then 27 - b^2 ÷ a + (11 - 5) is equal to _____.
Answer:25
Step-by-step explanation:
27-4^2/2+(11-5)= 25
Answer:
25
Step-by-step explanation:
Double knon facts to find each product 5x8
Answer:2304 is the answer
Step-by-step explanation:
Answer:
40
Step-by-step explanation: