A circle is inscribed in a square. If the perimeter of the square is 40, what is the area of the circle? Use 3.14 for pi.

Answers

Answer 1

Answer:

78.5

Step-by-step explanation:

We have the perimeter of the square, which is 40, and 40/4=10. In this picture, we see that the circle's diameter is the same as the length of one side of the square. Therefore, the diameter of the circle is 10. The are formula for circles is [tex]\pi r^{2}[/tex], where [tex]r[/tex] is the radius. The radius of the circle is just the diameter divided by 2, and 10/2=5. Now, [tex]5^2[/tex] is 25, and [tex]3.14\cdot25=78.5[/tex].

A Circle Is Inscribed In A Square. If The Perimeter Of The Square Is 40, What Is The Area Of The Circle?

Related Questions

Pluto is 5,560,000,000 years old. Estimate the age of Pluto by writing it in the form of x×10y years, where x and y are single-digit numbers.

Answers

Answer:

The age of pluto is:

5,560,000,000 years old = 5.56 × 10⁹ years old

x = 5.56

y = power of 9

Step-by-step explanation:

Pluto is 5,560,000,000 years old. Estimate the age of Pluto by writing it in the form of x×10y years, where x and y are single-digit numbers.

We write this in standard form or scientific notation.

5,560,000,000 years old = 5.56 × 10⁹ years old

x = 5.56

y = power of 9

This coordinate grid shows where Alberto's school is located. Each unit represents one block. Alberto's house is at (3,4). The library is located at the reflection of (3,4) across the y-axis.

PART A
What are the coordinates of the library?Explain how you know.

PART B
not needed
PART C
Use absolute value to find the distances from Albertos house to the school and from Albertos house to the library.

Answers

Answer:

Part A) -3, 4 Part C) 12 i think

Step-by-step explanation:

Answer:

Part A-(3,4)

Part B- 2 units

Step-by-step explanation:

Part A- (x,y)--->(-x,y)

3-2/7 divided by 1-1/4

Answers

3-2/7 = 0.14285714
1-1/4 = 0/4

need help with this please

Answers

Answer:

ok

Step-by-step explanation:

                                                              ...............................................................

Answer:

I can't relly see can you take a cloeser pick

question 5 i mark as brainliest ​

Answers

Answer:

5,129

Step-by-step explanation:

Answer:

C. 5129

Step-by-step explanation:

5.129 x [tex]10^{3}[/tex]

you will move the decimal to the right 3 times.

What Is f(0) ?

Choices
12 only
2 and 3 only
-2, -1, 1, and 2 only
-2, -1, 1 2 and 12

Answers

Answer:

12 only

Step-by-step explanation:

It means x is zero, and the only point on x=0 is 12 :)

According to the graph the function  f(0) is  12 only .

What is intercepts?

The x-intercept is the point where a line crosses the x-axis or at y = 0, and the y-intercept is the point where a line crosses the y-axis or at x =0.

According to the question

The graph shows the function in which

f(0) is

i.e

x = 0  or y intercept

Now, according to the graph

at x = 0 , y = 12

Or

f(0) = 12

Hence, The function  f(0) is  12 only .

To know more about intercepts here:

https://brainly.com/question/14180189

#SPJ3

Umm i need help and i forgot to put the picture da first time so yeaa

Answers

Answer:

75  14  12,600  781  128  399  26.13  40.80    12,750

Step-by-step explanation:

Hope this helps

Answer:

7. 100

8. 14

9. 12600

10. 639

11. 128

12. 399

13. Discount price= 12.87 Sale price= 26.13

14. 40.80

15. 12,750

I'm not 100% on #15 but the rest are good.

Step-by-step explanation: When you multiply the percent by the other number that gives you the difference. So then get the original number and either add or subtract the difference from the original number to get your answer. Add if increase Subtract if decrease.

So 7-11 you just have to multiply the percent by the other number.

7. 25*300% or 25*3 = 75  25 + 75 = 100

8. 56*.75 = 42  56-42= 14

9. 12000*.05 = 600 (since it is an increase add 600 to 12000) = 12600

10. 710*.10= 71 (71 is the difference so do this) 710-71= 639

11. 160*.20 = 32 (decrease) 160-32= 128

12. 380*.05=19 (increase) 380+19 = 399

13. 39*.33= 12.87 (decrease)

Discount price = 12.87

Sale price= 39-12.87= 26.13

14. 48*.15 = 7.20 (decrease) 48-7.20= 40.80

15. 3,000*3.25 = 9750 (increase) 9750 + 3000= 12,750

Numbers like 10,100,1,000, and so on are called?

Answers

Answer:

They are called powers of ten

Step-by-step explanation:

In the number 789.466 the digit in the hundredths place is______ the value of the digit in the thousandths place?​

Answers

Answer:

hundredths --> 6

thousandths value --> 0.006

Step-by-step explanation:

hundredths is the value two places to the right of the decimal point, which is currently 6.

The value of the digit in the thousandths place, which is 3 places to the right of the decimal place, is 6, but the value of the 6 is actually 0.006, because it is in the thousandths place, just like 700 would be the value of the digit in the hundreds place.

Write a linear function f with f(-3)=1 and f(13)=5

Answers

Answer:

[tex]y = \frac{1}{4}x +\frac{7}{4}[/tex]

Step-by-step explanation:

Given

[tex]f(-3) = 1[/tex]

[tex]f(13) = 5[/tex]

Required

Determine the linear function

A function is of the form:

[tex]y = f(x)[/tex]

Writing the given parameters in (x,y) format, we have:

[tex]f(-3) = 1[/tex] implies (-3,1)

[tex]f(13) = 5[/tex] implies (13,5)

So, the x and y values are:

(-3,1) and (13,5)

i.e.

[tex](x_1,y_1) = (-3,1)[/tex]

[tex](x_2,y_2) = (13,5)[/tex]

First, we need to determine the slope using:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{5 - 1}{13 - -(3)}[/tex]

[tex]m = \frac{4}{13 +3}[/tex]

[tex]m = \frac{4}{16}[/tex]

[tex]m = \frac{1}{4}[/tex]

The equation is calculated as thus:

[tex]y - y_1 = m(x - x_1)[/tex]

Where

[tex](x_1,y_1) = (-3,1)[/tex]

[tex]m = \frac{1}{4}[/tex]

[tex]y - 1 = \frac{1}{4}(x - (-3))[/tex]

[tex]y - 1 = \frac{1}{4}(x +3)[/tex]

[tex]y = \frac{1}{4}(x +3) + 1[/tex]

[tex]y = \frac{1}{4}x +\frac{3}{4} + 1[/tex]

[tex]y = \frac{1}{4}x +\frac{3+4}{4}[/tex]

[tex]y = \frac{1}{4}x +\frac{7}{4}[/tex]

2x + 7 = 13
Please help

Answers

Answer:

x=3

Step-by-step explanation:

Hope this helps u..

Using the model of 3.33, how dose the 3 in the one place compare to the 3 in the place to its right

Answers

Answer:

The 3 in the tens place is worth 10 times the 3 in the ones places.

Step-by-step explanation:

Have a great day :)

Can someone help me to do this cause i don’t know what to do

Answers

Answer:

ohh

Step-by-step explanation:

Woah it’s like the back of a milk label...

The sum of three consecutive odd numbers is 297, what are they? Create an equation and solve.

Answers

Answer:

98 + 99 + 100 = 297

Step-by-step explanation:

Question 1 of 3 NE A scale drawing of a fishing boat has a scale of 1 cmn to 2 meters. If the length of the fishing boat is 6 cm on the scale drawing, what is the actual length of the fishing boat?​

Answers

Answer:

12 meters

Step-by-step explanation:

Given

[tex]Scale= 1cm:2m[/tex]

Required

Determine the measurement when the scale reads 6cm

Represent this scale with x;

Such that:

[tex]Scale = 6cm:x[/tex]

Equate

[tex]Scale= 1cm:2m[/tex] and [tex]Scale = 6cm:x[/tex]

[tex]1cm:2m = 6cm:x[/tex]

Express as fraction

[tex]\frac{1cm}{2m} = \frac{6cm}{x}[/tex]

Cross Multiply

[tex]x * 1cm = 6cm * 2m[/tex]

[tex]x * 1 = 6 * 2m[/tex]

[tex]x = 6 * 2m[/tex]

[tex]x = 12m[/tex]

PLEASE HELP!!!!!!! Which set of numbers is arranged in decreasing order?

Answers

Answer:

C

Step-by-step explanation:

 [tex]\bold{Hello!}\\\bold{Your~Answer~Is~Below!}[/tex]

______________________________

 [tex]\bold{Solutions~Steps:}[/tex]

[tex]1.)~Simplify~everything~into~decimal~form:[/tex]

[tex]\bold{2\pi}[/tex][tex]\bold{6.283185307}[/tex][tex]\bold{\sqrt{37}}[/tex][tex]\bold{6.08276253}[/tex][tex]\bold{\frac{55}{9}}[/tex][tex]\bold{6.111111111}[/tex]

[tex]2.)~Round~to~the~nearest~hundredth :[/tex]

[tex]\bold{2\pi:6.283185307=6.28}[/tex][tex]\bold{\sqrt{37}:6.08276253=6.08}[/tex][tex]\bold{\frac{55}{9}:6.111111111=6.11}[/tex]

[tex]3.)~Order~them~in~decreasing~order,~(Greatest~to~Least:)[/tex]

[tex]\bold{6.82}[/tex][tex]\bold{2\pi}[/tex][tex]\bold{\frac{55}{9}}[/tex][tex]\bold{\sqrt{37}}[/tex]

______________________________

 [tex]\bold{Answer:}[/tex]

[tex]\bold{The~correct~decreasing~order~is~\boxed{C.}}[/tex]

______________________________

 [tex]\bold{Hope~this~helps,}\\\bold{And~best~of~luck!}\\\\\bold{~~~~~-TotallyNotTrillex}[/tex]

Which expression represents 7 less than a number

Answers

Answer:

Step-by-step explanation:

x-7=18 because x would be the number with "7 less"  being the "-7."

Question
Find the average rate of change of the function f(x). given below, from x = -1 to x = 4.
f(x) = -x^3+5x^2

Answers

Step-by-step explanation

x=-1

x=4

f(x)= x^3+5x^2

77 is 0.7% of what number?

Answers

Answer:

0.7% of 77 = 0.54 0.7%

Step-by-step explanation:

hope this helps

What is 2/3 x 3/4 please help

Answers

Answer:

1/2

Step-by-step explanation:

1/2 is the right answer

. An independent-measures research study was used to compare two treatment conditions with n=12 participants for each treatment. The first treatment condition had M=55 with a variance of s2=8, and the second treatment condition had M= 52 and s2=4. Look up the appropriate critical value based on your computed degrees of freedom. Do these data indicate a significant difference between the two treatments

Answers

Answer:

Decision rule  is  

Fail to reject the null hypothesis

 The conclusion is  

There is sufficient evidence that indicate that there is a significant difference between the two treatments

Step-by-step explanation:

From the question we are told that  

    The sample size is  n =  12

    The first  mean is  [tex]M_1  =  55[/tex]

    The variance is  [tex]s^2_1 =  8[/tex]

    The second mean is  [tex]M_2  =  52[/tex]

     The second variance is [tex]s^2_2 =  4[/tex]

Let the level of significance be  [tex]\alpha  =  0.05[/tex]

The null hypothesis is  [tex]H_o  :  M_1 = M_2[/tex]

The alternative hypothesis is [tex]H_a  :  M_1 \ne M_2[/tex]

  Generally the test statistics is mathematically

     [tex]t = \frac{M_1 - M_2 }{ \sqrt{\frac{s_1^2}{n_1} +\frac{s_2^2}{n_2}} }[/tex]

=>   [tex]t = \frac{55 - 52 }{ \sqrt{\frac{8}{12} +\frac{4}{12 }} }[/tex]

=>   [tex]t = 1.1619 [/tex]

Generally the degree of freedom is mathematically represented as

      [tex]df = 12 -1[/tex]

=>    [tex]df = 11 [/tex]

Generally  from the t- distriibution table the critical  value  of  [tex]\alpha[/tex] at a degree of freedom of [tex]df = 11 [/tex]  is

    [tex]t_{0.05 , 11} =  2.20098516[/tex]

Here given that the critical value is greater than the t statistics value the

Decision rule  is  

Fail to reject the null hypothesis

 The conclusion is  

There is sufficient evidence that indicate that there is a significant difference between the two treatments

Business Loss A company loses $40 as a result of a shipping delay. The 2 owners of the company
must share the loss equally. Write an expression for the earnings per person. Evaluate the
expression.
Write an expression for the earnings per person. Choose the correct answer below.
+
OA. - 2+(-40)
OB. 2+(-40)
OC. 40+ (-2)
OD. - 40 + 2

Answers

Answer:

b

Step-by-step explanation:

If a polygon is a pentagon, then it has 5 sides hypothesis conclusion

Answers

Answer:

Hypothesis

 

Step-by-step explanation:

 a polygon has five sides Conclusion: it is a pentagon If a polygon has five sides, then it is a pentagon.

hope this helps

A professor is interested in comparing the characteristics of students who do and do not vote in elections. For a random sample of 114 students who claimed to have voted in the last presidential election, she found a mean CPA of 2.71 and a standard deviation of 0.64. For an independent sample of 123 students who did not vote, the mean CPA was 2.79 and the standard deviation was 0.56. Test at the 5% level of significance if the mean CPA of all students who vote is lower than the CPA of students who do not vote.

Answers

Answer:

The decision rule is

Fail to reject the null hypothesis

The conclusion is  

There is no sufficient evidence to conclude that the mean CPA of all students who vote is lower than the CPA of students who do not vote

Step-by-step explanation:

From the question we are told that

       The first sample size  is  [tex]n_1 =  114[/tex]

       The sample mean is  [tex]\= x_1 =  2.71[/tex]

       The standard deviation is  [tex]s_1 =  0.64[/tex]

      The second sample size is   [tex]n_2 =  123 [/tex]

      The sample mean is   [tex]\= x_2 =  2.79[/tex]

      The level of significance is  [tex]\alpha  =  0.05[/tex]

      The standard deviation is   [tex]s_2 =  0.56 [/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 hypothesis is mathematically represented as

      [tex]t =  \frac{\= x_1 - \= x_2}{ \sqrt{ \frac{s_1^2 }{n_1} + \frac{s_2^2}{n_2}  } }[/tex]

=> [tex]t =  \frac{2.71 - 2.79}{ \sqrt{ \frac{0.64^2 }{ 114} + \frac{0.56^2}{123}  } }[/tex]

=> [tex]t =  -1.01 [/tex]

Generally given that variance are not equal (the standard deviation  squared of both population are not equal ) the degree of freedom  is mathematically represented as

[tex]df  =  \frac{[\frac{s_1^2}{n_1 } + \frac{s_2^2}{n_2}  ]}{\frac{[\frac{s_1^2}{n_1}]^2 }{n_1 - 1} + \frac{[\frac{s_2^2}{n_2}]^2 }{n_2 - 1}}[/tex]

=>  [tex]df  =  \frac{[\frac{0.64^2}{114} + \frac{0.56^2}{123}  ]}{\frac{[\frac{0.64^2}{114}]^2 }{114 - 1} + \frac{[\frac{0.56^2}{123}]^2 }{123 - 1}}[/tex]

=>  [tex]df  =  225[/tex]

Generally from the t distribution table the the probability of  (t < -1.01) at a degree of freedom of [tex]df  =  225[/tex]is  

      [tex] p-value  = P(t <  -1.01 ) =  0.15679[/tex]

Generally the value obtained we see that  [tex]p-value  > \alpha[/tex] so

The decision rule is

Fail to reject the null hypothesis

The conclusion is  

There is no sufficient evidence to conclude that the mean CPA of all students who vote is lower than the CPA of students who do not vote

kyle has 105 baseball cards and must give 2/5 of his cards away. how many cards will kyle give away? what fraction of his cards does he have left?

Answers

He has 3/5 of his cards left because he had 62/105 of his cards and that simplified is 3/5

Compare decimals in differ
Order the values from least to greatest.
91 hundredths
(1x1)+ (9
(1x)
1
10
0.19
Stuck? Watch a video or use a hint.

Answers

Answer:

hehaw

Step-by-step explanation:

0.19, 91 hundredths, then the equation

Pls help 8th grade math
FILL IN THE BLANKS !!

Answers

answers in picture................

PRACTICE ANOTHER Is 4a a factor of 2a · 38b? (Assume that a and b represent integers.) Yes, because 4 is a multiple of 38. Yes, because 2a · 38b = 4a · 19b where 4a and 19b are integers because a and b are integers and products of integers are integers. Yes, because 4a is a divisor of 38b. No, because 38 is not a divisor of 4. No, because 2a · 38b = 4a · 19b where 4a and 19b are not necessarily integers because products of integers are not always integers.

Answers

Answer:

Yes, [tex]2a . 38b = 4a . 19b[/tex]

Step-by-step explanation:

Given

[tex]Expression: 2a.38b[/tex]

Required

Is 4a a factor of the expression?

Analyzing each option.

1.

[tex]2a . 38b = 4a . 19b[/tex]

[tex]76ab = 76ab[/tex]

The above expression is true.

Hence: This option answers the question

Question 2 (4 points)
A student rolled two six-sided dice. what is the probability that the first die landed
on a number less than 3 and the second die landed on a number greater than 3?

Answers

Answer:

Step-by-step explanation:

Plz help
(5x)2 square = X2square

Answers

Answer:

± 25

Step-by-step explanation:

Other Questions
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(10 points)Group of answer choicesYes, because there is a lot of variability in the computer science book dataYes, because the mean is larger in the computer science bookNo, because the mean is larger in the computer science bookNo, because there is a lot of variability in the computer science book data (brainliest if its right) Muscles use a lot of cellular energy because they are highly functional. Whichorganelle would be in abundant to provide that energy?VacuoleChloroplastMitochondriaNucleus *ECONOMICS* please help me :((( Find the exact values of each of the following trigonometric ratios using the given triangle.cos Acos Bsin Asin Btan Atan BWhat is the relationship between each of the values you found and why? Sully is buying soil (x) and plants (y) for his rose garden. The soil cost $4 per bag, and the plants cost $6 each. Sully wants to buy at least 10 plants and can spend no more than $120. Janelle is writing a letter to her local telephone company. Because most people look up phone numbers on the Internet,she wants to persuade the phone company to stop handing out phonebooks to every household. Which of the followingwould be the best source for her to include?1OA. the number of trees and gallons of gas used to make and deliver booksOB. interviews with people who cannot access phone numbers onlineOC. interviews with business heads who use the phonebook to advertiseOD. the number of 411 calls made on average within her community Please someone help me with this! Math The velocity-time graph for a cycle is shown.10488Velocity (m/s)200 2 4 6 8 10 12 14 16 18 20Time (seconds)a) Work out the distance travelled on the cycle in the first 14 seconds.b) Work out the acceleration in the first 4 seconds. Carolyn is looking over opinions based primarily on research studies. She has found that there are 31 of them in total. What organization is Carolyn researching? Which of the following does NOT represent a whole number?9, 6.0, 12/4, -12/3 help plz A plane takes off from a runway and begins its climb. The plane takes off at a constant acceleration of 20 LaTeX: m /s^{2} . Once it reaches altitude it moves at 246 m/s, and maintains that speed. If it continues at this speed for 93 min, how far would the plane have traveled from the time took off? Vicky reads at a constant rate. She can read 5 pages in 9 minutes write a linear equation in variables that represents the number of pages vicky reads in any given time interval Which of the following symbols represents a chlorine ion with a stable arrangement of eight valence electrons? Listed below are the 35 members of the Metro Toledo Automobile Dealers Association. We would like to estimate the mean revenue from dealer service departments. 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