Tia dilated the rectangle below by a scale factor of 7/2. What is ther perimeter of the new rectangle?
A
64 inches
B
220 inches
C
2695 inches
D
224 inches
Answers
Answer:
D. 224 inches
Step-by-step explanation:
Length of the new rectangle after dilation = 22 × ⁷/2 = 77 inches
Width of the new rectangle after dilation = 10 × ⁷/2 = 35 inches
Perimeter of rectangle = 2(length + width)
= 2(77 + 35)
= 2(112)
Perimeter = 224 inches
Related Questions
Simplify:
3^x-1 × 27^x+1
___________
81^x
Answers
Answer:
3^x-1×27^x+1
___________
81^x
81^x+x-1+1
_________
81^x
81^2x
_____
81^x
81^2x-1x
81^1x
4(2x-15)+7(3x+2)=70?
Answers
Answer:
the answer is [tex]x=4[/tex]
Step-by-step explanation:
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
hope this helps :)
8x -60 +21x +14 =70
29x -60 +14 =70
29x -46 =70
29x =24
29x/29 = 24/29
x= 1.208333333
does that help?
easy question if your having big problem
Answers
Answer:
whats the problem
Step-by-step explanation:
Answer:
yup
Step-by-step explanation:
. The National Sleep Foundation surveyed representative samples of adults in six different countries to ask questions about sleeping habits.† Each person in a representative sample of 250 adults in each of these countries was asked how much sleep they get on a typical work night. For the United States, the sample mean was 391 minutes, and for Mexico the sample mean was 426 minutes. Suppose that the sample standard deviations were 25 minutes for the U.S. sample and 49 minutes for the Mexico sample. The report concludes that on average, adults in the United States get less sleep on work nights than adults in Mexico. Is this a reasonable conclusion? Support your answer with an appropriate hypothesis test. (Use
= 0.05.
Use 1 for Mexico and 2 for the United States.)
Answers
Answer:
Yes the conclusion in the question is a reasonable conclusion
Step-by-step explanation:
From the question we are told that
The sample size is [tex]n_1 = n_2 = n = 250[/tex]
The sample mean for USA is [tex]\= x_1 = 391 \ minutes[/tex]
The sample mean for Mexico is [tex]\= x_2 = 426 \ minutes[/tex]
The sample standard deviation for USA is [tex]s_1 = 25 \ minutes[/tex]
The sample standard deviation for Mexico is [tex]s_2 = 49 \ minutes[/tex]
The null hypothesis is [tex]H_o : \mu_1 = \mu_2[/tex]
The alternative hypothesis is [tex]H_a : \mu_1 < \mu_2[/tex]
Generally the test statistics is mathematically represented as
[tex]z = \frac{\= x_1 - \= x_2 }{ \sqrt{ \frac{s_1^2}{n_1} + \frac{s_2^2}{n_2 } } }[/tex]
=> [tex]z = \frac{ 391 - 426 }{ \sqrt{ \frac{25^2}{250} + \frac{49^2}{250} } }[/tex]
=> [tex]z = -10[/tex]
From the z table the area under the normal curve to the left corresponding to -10 is
[tex]p-value = P(Z < -10 ) = 0.00[/tex]
Generally from the value obtained we see that
The p-value is < [tex]\alpha[/tex] hence
The decision rule is
Reject the null hypothesis
The conclusion is
The is sufficient evidence to conclude that adults in the United States get less sleep on work nights than adults in Mexico
Hence the conclusion in the question is a reasonable conclusion
The p-value is less than [tex]\alpha[/tex] hence reject the null hypothesis. This is sufficient evidence to conclude that adults in the United States get less sleep on work nights than adults in Mexico and hence it is a reasonable conclusion given in the problem.
Given :
The National Sleep Foundation surveyed representative samples of adults in six different countries to ask questions about sleeping habits.Each person in a representative sample of 250 adults in each of these countries was asked how much sleep they get on a typical work night.For the United States, the sample mean was 391 minutes, and for Mexico the sample mean was 426 minutes.Suppose that the sample standard deviations were 25 minutes for the U.S. sample and 49 minutes for the Mexico sample.According to the given data the sample size of the US and Mexico is [tex]\rm n_1=n_2=250[/tex].
The hypothesis are as follows:
Null Hypothesis is [tex]\rm H_0 : \mu_1=\mu_2[/tex]
Alternate Hypothesis is [tex]\rm H_1 : \mu_1<\mu_2[/tex]
Now, the mathematical representation of test statistics is:
[tex]\rm z = \dfrac{\bar{x_1}-\bar{x_2}}{\sqrt{\dfrac{\sigma^2_1}{n_1}+\dfrac{\sigma^2_2}{n_2}} }[/tex]
[tex]\rm z = \dfrac{391-496}{\sqrt{\dfrac{25^2}{250}+\dfrac{49^2}{250}} }[/tex]
z = -10
According to the z-table:
p - value = p (Z < -10) = 0
The p-value is less than [tex]\alpha[/tex] hence reject the null hypothesis.
This is sufficient evidence to conclude that adults in the United States get less sleep on work nights than adults in Mexico and hence it is a reasonable conclusion given in the problem.
For more information, refer to the link given below:
https://brainly.com/question/23044118
КУ Meccahi Grant Question #21 The perimeter of a rectangle is given by the algebraic Part A. expression 2x2 + 4x + 4. The width of this rectangle Create an algebraic expression in terms of x to 2 is given by the algebraic expression x? – 4. represent the length of the rectangle. The perimeter of a rectangle is given by the algebraic expression 2x2 + 4x +4. The width of this rectangle is given by the algebraic expression x2 - 4. Part A Create an algebraic expression in terms of x to represent the length of the rectangle. Part B If x = 3, what is the area of this rectangle in squa units? Remember to include units.
Answers
Answer: The question requires an understanding of how to compose and decompose multi digit numbers. The expanded form 70,000 + 4,000 + 70 + 2 corresponds to the number 74,072, which is the population of Davidson County.
(sorry if i'm wrong)
:(
please help UwU
if correct you get Brainiest
Answers
Answer: C
Step-by-step explanation:
HELP ME PLEASEEEEEEEEEE
Answers
The sum of five times a number and four is equal to negative eleven. What is the number?
-4
-5
-2
-3
Answers
Answer:
-4
Step-by-step explanation:
Answer:
The answer is -3
Step-by-step explanation:
First I subtracted 4 from -11 giving me the product of 5 and n before 4 was added which is -15
I then divided -15 by 5 giving me -3
Simplify 18 - 6x + 5x - 11
Answers
Answer:
7-x
Step-by-step explanation:
18-11=7
-6x+5x=-x
therefore, the answer is 7-x
The solution of the expression is,
⇒ - x + 7
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ 18 - 6x + 5x - 11
Now, We can solve the expression as;
⇒ 18 - 6x + 5x - 11
Rearrange as;
⇒ - 6x + 5x + 18 - 11
Combine like term as;
⇒ - x + 7
Thus, The solution of the expression is,
⇒ - x + 7
Learn more about the mathematical expression visit:
brainly.com/question/1859113
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which point of the number line represents negative 4/5?
A
B
C
D
Answers
Answer:
the answer is A
Step-by-step explanation:
Sally used 5 gallons of ginger ale, 1 gallon of orange juice, and 2 gallons of pineapple juice, to make a punch for her family holiday party. How many
quarts of punch will Sally have for her party?
32 quarts
52 quarts
O 36 quarts
12 quarts
Answers
Answer:
A.) 32 quarts
Step-by-step explanation:
If there are 4 quarts in a gallon, and Sally has 8 gallons of punch total, 4*8=32 quarts.
Answer:
32 quarts
Step-by-step explanation:
1 gallon = 4 quarts
5+1+2=8
8 × 4 = 32
Please answer, will give brainliest.
Answers
Answer:
third one
Step-by-step explanation:
Answer:
I think one solution
Step-by-step explanation:
*Sorry if this did not help. I'm only in 5th grade*
A classroom is painting the classrooms. Each classroom takes 1/3 of a gallon of
paint. If the school buys 6 gallons of paint, how many classrooms can they paint?
Plz help
Answers
Answer: try 18
Step-by-step explanation:
Draw a rough sketch of the graph of f(x)=(x+1)^2(x-4). Insert a picture of your sketch below.
WILL GIVE BRAINLIEST PLS PLS HELP
Answers
Answer:
I will help you since you asked :) sorry for taking so long
step explanation:
The solution is f ( x ) = ( x + 1 )² ( x - 4 )
What is Equation of Graph of Polynomials?
Graphs behave differently at various x-intercepts. Sometimes the graph will cross over the x-axis at an intercept. Other times the graph will touch the x-axis and bounce off.
Identify the even and odd multiplicities of the polynomial functions' zeros.
Using end behavior, turning points, intercepts, and the Intermediate Value Theorem, plot the graph of a polynomial function.
The graphs cross or are tangent to the x-axis at these x-values for zeros with even multiplicities. The graphs cross or intersect the x-axis at these x-values for zeros with odd multiplicities
Given data ,
The equation is f ( x )
f ( x ) = ( x² + 2x + 1 ) ( x - 4 )
On Simplifying the equation , we get
f ( x ) = ( x³ - 4x² + 2x² - 8x + x - 4 )
Now , this is a polynomial equation and can be plotted on a graph and is shown below
To learn more about equation of the graph click :
https://brainly.com/question/16957172
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Which number line correctly shows -3-(1.5)
Answers
whats 2+2 lollololololololololololololololololololo
Answers
Answer:
4ssssssssssssssssssssssssssss
Helpp me pleasee correct answers! (10 points )
Answers
Answer: Approximately 30.4 degrees
=========================================================
Work Shown:
324 - 1.6 = 322.4 is the height of the right triangle. This is the opposite side compared to the angle theta.
The adjacent side is 550 since it is the leg closest to the angle theta.
We'll use the tangent rule to connect the two sides
tan(angle) = opposite/adjacent
tan(theta) = 322.4/550
theta = arctan(322.4/550)
theta = 30.3780566013696
theta = 30.4
Your teacher didn't provide any rounding instructions, but I rounded to one decimal place since the value 1.6 is to one decimal place.
For f(x) = x3-x2, which gives an output of 48?
A. f(-8)
B. f(-4)
C. f(4)
D. f(8)
Answers
Answer:
The input is x−2, therefore
Step-by-step explanation:
f(x−2)=(x−2)2−3(x−2)+1
find the slope intercept form of the equation of the line that passes through (-1,5) and is parallel to the line y=2x+4
Answers
Answer:
y = 2x + 7
Step-by-step explanation:
A bag of marbles contains three blue, one black, and four
yellow marbles. If two marbles are chosen at random
without replacement, what is the probability that both
marbles will be yellow?
Answers
Answer:
3/14Step-by-step explanation:
Blue = 3Black = 1Yellow = 4Total = 3 + 1 + 4 = 8
Probability of two yellows:
4/8*3/7 = 3/14(b) 25% of what number is 17?
Answers
Answer:
68
Step-by-step explanation:
derive that 25 percent of 68 equals 17.
Answer:
25 percent of 68 equals 17.
Step-by-step explanation:
Which container holds more, a half-gallon milk jug or a 2-liter juice bottle
Answers
Answer:
1 gallon=3.79 liters 2 liter juice bottle would hold more
Step-by-step explanation:
Rob is setting up a model train track that is 3 and 3 over 8 feet long. No telephone pole is needed at the start of the track. However, along the track, he places a telephone pole every 3 over 8 foot apart. How many telephone poles does he need? (Input number values only.
Answers
Answer:
9?
Step-by-step explanation:
Answer:
sorry dont understaand
Step-by-step explanation:
If a wagon is accelerating at a rate of 2 m/s and the
force acting on it is 20 N, what is the mass of the
wagon?
Answers
Answer:
40kg
Explanation:
a=2m/s^
f=20N
M=?
we know
f=m*a
or, 20=m*2
or, 2m=20
or, m= 20/2
:. m=10 kg
Please helpp I’ll give brainleist
Answers
Answer:
87 for lo and om is 56
Step-by-step explanation:
Answer:
<LON= 98 Degrees
Step-by-step explanation:
180-55(2)=70
70+28=98
For every 24 cookies, there are 12 students. Which ratio does not represent cookies to students?
Answers
Answer: 12:24
Step-by-step explanation:
You can’t have 12 students to each cookie
Answer:
D: 2 students for every cookie
Step-by-step explanation:
D does not represent the ratio of cookies to students because it claims there are 2 students to every cookie, where there are 2 cookies for every student.
HELP PLEASE! IMAGE ATTACHED
Answers
Answer:
I cannot see the picture it just shows the image logo
Step-by-step explanation:
-4x +8 = 12
what does x =
Answers
Answer:
x = -1
Step-by-step explanation:
-4x + 8 = 12
-8 -8
-4x = 4
divide both sides by -4
x = -1
Hope this helps!!!
Joe paid $14.00 for a board game. This is 70% of the original price. What was the original price?
Answers
Answer:
69.99
Step-by-step explanation:
Answer:
23.80
Step-by-step explanation:
PLEASE HELP WILL GIVE BRAINLIEST
Does the following table represent a linear function? If so, find the linear equation that models the data.