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3 years ago

What is the answer for C = 12π

Mathematics

2 answers:

Oduvanchick [21]3 years ago

7 0

Answer:

About 37.7

Step-by-step explanation:

12 x pi = 37.69911184 which can be rounded to 37.7. (Or 38 if you need a whole number)

Yuliya22 [10]3 years ago

6 0

The answer is c= 12*3.14=37.68

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An art museum has a pentagon-shaped room. When drawn to scale on a coordinate grid, the corners of the room are points (18,20):

AURORKA [14]

Answer:

$2\ gal$

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

$A(18,20),B(4,20),C(4,4),D(16.2),E(22.10)$

step 1

Find the distance AB

we have

$A(18,20),B(4,20)$

substitute in the formula

$d=\sqrt{(20-20)^{2}+(4-18)^{2}}$

$d=\sqrt{(0)^{2}+(-14)^{2}}$

$AB=14\ ft$

step 2

Find the distance BC

we have

$B(4,20),C(4,4)$

substitute in the formula

$d=\sqrt{(4-20)^{2}+(4-4)^{2}}$

$d=\sqrt{(-16)^{2}+(0)^{2}}$

$BC=16\ ft$

step 3

Find the distance DE

we have

$D(16.2),E(22.10)$

substitute in the formula

$d=\sqrt{(10-2)^{2}+(22-16)^{2}}$

$d=\sqrt{(8)^{2}+(6)^{2}}$

$d=\sqrt{100}$

$DE=10\ ft$

step 4

Find the distance AE

we have

$A(18,20),E(22.10)$

substitute in the formula

$d=\sqrt{(10-20)^{2}+(22-18)^{2}}$

$d=\sqrt{(-10)^{2}+(4)^{2}}$

$d=\sqrt{116}$

$AE=10.77\ ft$

step 5

Find out the area of the four walls

To determine the area sum the length sides and multiply by the height of the walls

$A=(AB+BC+DE+AE)h$

substitute the given values

The height of the walls is 10 ft

$A=(14+16+10+10.77)10$

$A=(50.77)10$

$A=507.7\ ft^2$

step 6

Determine the number of gallons needed to paint the four walls

we know that

one gallon of paint is enough to cover 400 square feet

using proportion

$\frac{1}{400}\ \frac{gal}{ft^2}=\frac{x}{507.7}\ \frac{gal}{ft^2}\\\\x=507.7/400\\\\x= 1.27\ gal$

Round up

$x=2\ gal$

5 0

3 years ago

HELP PLEASE !! REAL ANSWER ONLY

borishaifa [10]

Answer:

CSA is 12.57

TSA is 18.85 .. i dont know what the question is asking..

I will recommend you to use TSA

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3 years ago

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Factorise x^2+4x+3<br> Write your steps as well please

vampirchik [111]

Step-by-step explanation:

x²+4+3
x²+x+3x+3
x(x+1)+3(x+1)
(x+1)(x+3)

hope it helps.

<h2>stay safe healthy and happy...</h2>

7 0

3 years ago

What will be 66 2/3 as a percent explanation

VashaNatasha [74]

66.666666 repeated decimal
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4 years ago

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Inessa05 [86]

Answer:

203 ; 245

Step-by-step explanation:

158 + 45= 203

question 2

203+42= 245

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3 years ago

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