The circumference of a circle is 20 pi inches. What is the area in square inches of the circle express your answer in terms of pi

Answers

Answer 1

Answer:

314 c m 2

Step-by-step explanation:i think i dont know (sorry)


Related Questions

if the volume of a sphere is 36 pi cubic inches, what is the radius?​

Answers

Answer:

r = 3 in

Step-by-step explanation:

The volume (V) of a sphere is calculate as

V = [tex]\frac{4}{3}[/tex]πr³ ( r is the radius )

Here V = 36π , then

[tex]\frac{4}{3}[/tex]πr³ = 36π ( multiply both sides by 3 to clear the fraction )

4πr³ = 108π ( divide both sides by 4π )

r³ = [tex]\frac{108\pi }{4\pi }[/tex] = 27 ( take the cube root of both sides )

r = [tex]\sqrt[3]{27}[/tex] = 3

Which statement is true?
The range of h(x) is y> 0.
The domain of g(x) is y> 0.
O The ranges of f(x) and h(x) are different from
the range of g(x).
O The domains of f(x) and g(x) are different from the domain of h(x).

Answers

The range of h(x) is core

Answer:

Step-by-step explanation:

Toby the poodle buries 9 sticks. Clifford the jack russel buries 7 times as the amount of sticks toby How many sticks did the dogs bury in all

Answers

Answer:

1√6

Step-by-step explanation

9+7=16

Giventhat : APRQ ~AD
What is m

Answers

Answer:

∠D = 56°

∠D = 180° - (35° + 89°) = 56°


Darnell took a total of 14 pages of notes during 7 hours of class. After attending 8 hours of
class, how many total pages of notes will Darnell have in his notebook? Assume the
relationship is directly proportional.
pages

Answers

Answer:

16 pages

Step-by-step explanation:

1 hour= 2 pages written of notes

so 8 hours of notes = 8x2=16 pages

What is the slope-intercept equation of the line below

Answers

It would be A to this question

Johnny Bravo bought Amazon 25 shares at $50. He sold them at $2346 a few years later. How much money did he make on this stock?

Answers

Answer:

$1096

Step-by-step explanation:

If Johnny Bravo bought Amazon 25 shares at $50, the cost price is expressed as;

Cost price of 25shares = 25 * 50

Cost price of 25shares = $1,250

If he sold them at $2346 a few years later

Profit = Selling price - Cost price

Profit made = 2346 - 1250

Profit made = $1096

Easy question please answer mark you brainliest

1. find the area of the circle

Answers

Answer:

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

Answer:

area of a circle=200.96a^12

Step-by-step explanation:

area of circle=πr^2

=3.14*([tex]8a^{6}[/tex])^2

=3.14*64a^12

=200.96a^12

A: What is the smallest increment on the voltmeter

B: What is the uncertainty

(Multi choice)

1. A: 10 V
2. A: 1 V
3. A: 100 V
4. B: 5 V
5. B: 0.5 V
6. B: 50 V​

Answers

Answer:

RESOLUTION

Step-by-step explanation:

Resolution is the smallest increment a tool can detect and display. For a nonelectrical example, consider two rulers.

x-3=0 mod 4 and also explain how to find mod stuff

Answers

Answer:

Step-by-step explanation:

x-3=0mod 4 means

if x-3 is divided by 4 ,remainder is zero.

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

where m is an integer.

Triangle ABC is similar to triangle FGH.

What is the value of x in centimeters?

Answers

Answer:

pythagorean theorem

18

Step-by-step explanation:

15 = 3w solve for w, what does w equal

Answers

Answer:

w = 5

Step-by-step explanation:

15 = 3w

Switch sides.

3w = 15

Divide both sides by 3.

w = 5

3w = 15

Divide both sides by 3

3w ÷ 3 = 15 ÷ 3

w = 5

What is the solution to the system of equations graphed below?

Answers

the answer is C, hope this helps.

Answer:

BELOW

Step-by-step explanation:

(Y, X)

Y=-1

X=1

*** ACCORDING TO MY SOLUTION THE ANSWER IS (-1,1)

In circle S with mRST = 68, find the mRUT.

Answers

Answer:

m∠RUT=1/2 m∠RST

=1/2(68)

=34°

m∠RUT=34°

--------------------------hope it helps...have a great day!!

Can someone help me with this ?

Answers

12 + 8 = 20 , 20 + 8 = 28 , 28 + 8 = 36

5 + 8 = 13 , 13 + 8 = 21 , 21 + 8 = 29

29 is the answer

Answer:

29

Step-by-step explanation:

The sequence of values

5 , 13, 21 , ?

The values are increasing by 8 so missing value is

? = 21 + 8 = 29

whats 38273 round off to 100​

Answers

Answer:

38,300

Step-by-step explanation:

The hundredth number is the third number to the left from the right.

If we look to the number right of 2, there 7.

Since we are rounding: 5 or more...raise the score, 4 or less...let it rest.

Well 7 is greater than 5 so we round 2 up to 3

Hope this helps

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

38,273  ≈ 38,300

»»————- ★ ————-««  

Here’s why:  

We would first locate the hundreds place. The hundreds digit would be '2'.

38,273

If the tens place (the digit to the right) is greater than or equal to 5, then we would round up. If the tens place is less than or equal to 4, we round down. Since the 7 is greater than or equal to 5, we would round up.

⸻⸻⸻⸻

38,273  ≈ 38,300

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

3) A box contains 4 yellow marbles, 2 blue marbles, and 3 red marbles. If a marble is drawn randomly from
the box, but the marble drawn is replaced. What is the probability of drawing 2 yellow marbles and 1 red
marble?​

Answers

Hey buddy I am here to help!

yellow marbles = 4

blue marbles = 2

red marbles = 3

total marbles = 9

1 random marbles taken off probability left = 8/9

1 random marble taken off probability = 1/9

marble if replaced = + 1

if one marble if replaced then = 8/9 + 1/9 = 9/9 that means total marbles r 9

yellow marbles drawn off = 2

so... 4 - 2 = 2 marbles left

red marbles taken off = 1

so... 3 -1 = 2 marbles left

probability/answer  = 3/9 = 1/3

Hope it helps!

Plz mark my answer brainliest

8 cm
10 cm
The surface area of the above figure is
A. 816.8 cm2
B. 879.6 cm2
C. 565.5 cm2
D. 1131.0 cm2

Answers

Answer D from the web

Pls help quickly! First 2 answers i will chose to get a brainliest!

Answers

Answer:

222 yds^3

Step-by-step explanation:

First find the volume of the back rectangular prism

V = l*w*h = 9* 6*3 =162

Then find the volume of the front rectangular prism

V = 5*4*3 = 60

Add them together

V total = 162+60 =222 yds^3

Maggie bought 45 oz of flour for her bakery. She used 17.5 oz to make a loaf of bread, and 0.71 oz for each muffin. How many muffins did Maggie make if she had 14.72 oz of flour left over?

Answers

Answer:

18 muffins

Step-by-step explanation:

Amount of flour Maggie used

Total amount of flour she bought - Amount of flour left over.

= 45oz - 14.72 oz

= 30.28 oz of flour

She used 17.5 oz to make a loaf of bread, and 0.71 oz for each muffin.

Hence,

Let the number of muffins = x

17.5 + 0.71x = 30.28

0.71x = 30.28 - 17.5

0.71x = 12.78

x = 12.78/0.71

x = 18 muffins

Therefore, Maggie made 18 muffins

The equation sin (25 degree) equals StartFraction 9 Over c EndFraction can be used to find the length of Line segment A B.

Answers

Answer:

[tex]AB = 21.3[/tex]

Step-by-step explanation:

Given

[tex]\sin(25) = \frac{9}{c}[/tex]

See attachment

Required

Find AB

We have:

[tex]\sin(25) = \frac{9}{c}[/tex]

Make c the subject

[tex]c = \frac{9}{\sin(25)}[/tex]

[tex]c = 21.3[/tex]

From the attached triangle;

[tex]AB = c = 21.3[/tex]

Hence:

[tex]AB = 21.3[/tex]

What is the greatest common factor of 42, 30, and 45

Answers

Answer:

3

Step-by-step explanation:

Express the numbers as a product of their primes.

42 = 2 × 3 + 7

30 = 2 × 3 × 5

45 = 3 × 3 × 5

Identify the prime factors common to all 3 numbers.

common prime factor = 3 , thus

GCF = 3

Answer: 3

Step-by-step explanation: The factors of 30 are 1. 2. 3. 5. 6. 10, 15, 30

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42

The factors of 45 are 1, 3, 5, 9, 15, 45

As you can see they all share the factors of 1 and 3. Since 3 is the greatest number of the factors all of them share it is the greatest common factor.

Which of these r-values represents the weakest correlation
A 0.6
B 0.3
C 0.5
D 0.4

Answers

Answer:

B

Step-by-step explanation:

0.3 is weakest

Solve 270=3e^2.4K to the nearest hundredth

If you can solve this for me could you please give steps so I can understand, please and thank you so much!

Answers

Given:

The equation is:

[tex]270=3e^{2.4K}[/tex]

To find:

The solution for the given equation to the nearest hundredth.

Solution:

We have,

[tex]270=3e^{2.4K}[/tex]

Divide both sides by 3.

[tex]\dfrac{270}{3}=e^{2.4K}[/tex]

[tex]90=e^{2.4K}[/tex]

Taking ln on both sides, we get

[tex]\ln (90)=\ln e^{2.4K}[/tex]

[tex]\ln (90)=2.4K[/tex]                  [tex][\because \ln e^x=x][/tex]

Divide both sides by 2.4.

[tex]\dfrac{\ln (90)}{2.4}=K[/tex]

[tex]\dfrac{4.4998}{2.4}=K[/tex]           [tex][\because \ln (90)\approx 4.4998][/tex]

[tex]1.874916667=K[/tex]

Round the value to the nearest hundredth (two decimal place)

[tex]K\approx 1.87[/tex]

Therefore, the value of K is 1.87.

2. Your distant family has invited you to stay at the farm with them this summer.
Congrats! Your first task is to repaint the old silo. The radius of the silo is 15 feet. How
much area will you need to cover with your paint?

Answers

This is how much area you will need to cover

What is the correct answer to this question?

Answers

Answer:

A

Step-by-step explanation:

Find the area of the polygon.

Answers

Answer:

Area = 15 square cm

Step-by-step explanation:

[tex]Area = base \times height\\\\[/tex]

       [tex]= 5 \times 3\\= 15 \ cm^2[/tex]

area =15cm²

Answer:

Solution given:

Area of a given polygon [parallelogram]=

base*height=5*3=15cm²

set of data has a normal distribution with a mean of 56 and a standard deviation of 7. Find the percent of data within the following interval.
from 35 to 77

SOMEONE PLEASE HELP

Answers

Answer:

.99815

which is about

99.815%

Step-by-step explanation:

we are looking for 35<x<77

We need to find (what I think is called) the z score which is acheieved through what I'm pretty sure is called standardizing

What we do is subtract the mean and then divide by the standard deviation

so for 35 we have

(35-56)/7= -3.29

due to the fact that the normal distribution is symmetric this is equal to 1-p(3.29)

to find p(3.29) grab a ztable and get p(3.29)= .9995

1-.9995= .0005

For 77 we have

(77-56)/7=3

grab a ztable and find the 3= .99865

Finally subtract these two to get the final answer

.99865-.0005= .99815

solve these simultaneous linear equation
3x - 4y = 1
6x + 7y = 13​

Answers

9514 1404 393

Answer:

  (x, y) = (59/45, 11/15) ≈ (1.311, 0.733)

Step-by-step explanation:

A graphing calculator shows us the solution is not integer values, so we may find it easiest to solve these equations using the "cross-multiplication method."

Writing the equations in general form, we have ...

  3x -4y -1 = 0

  6x +7y -13 = 0

Then we can form an array of the coefficients, repeating the first column:

  [tex]\begin{array}{cccc}3&-4&-1&3\\6&7&-13&6\end{array}[/tex]

Forming differences of cross products involving adjacent pairs of columns gives ...

  d1 = (3)(7) -(6)(-4) = 45

  d2 = (-4)(-13) -(7)(-1) = 59

  d3 = (-1)(6) -(-13)(3) = 33

Then the solutions are found from ...

  1/d1 = x/d2 = y/d3

or

  x = d2/d1 = 59/45

  y = d3/d1 = 33/45 = 11/15

The solution is (x, y) = (59/45, 11/15) ≈ (1.311, 0.733).

_____

Additional comment

This takes longer to explain than to do. One reason we like it is that the number of math operations is slightly smaller than the number of math operations required for substitution or elimination. It is especially nice when the solution is not a pair of integers.

Help, please, what is the answer??

Answers

Answer:

18.0

Step-by-step explanation:

The three lines form a right triangle where 10 and 15 are the two legs of the triangle. You can use the pythagorean theorem to solve for the length of x.

x = [tex]\sqrt{15^{2} + 10^{2} }[/tex]

x = 18.028 (approximately 18)

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