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kolezko [41]
3 years ago
11

Find the circumference and area of a circle with a radius of 3

Mathematics
1 answer:
viktelen [127]3 years ago
8 0

Answer:

circumference is 18.84

area is 28.26

Step-by-step explanation:

circumference of a circle is

2πr where r is radius

= 6×3.14= 18.8

area of a circle is πr²

= 3×3×3.14

= 28.26

use π = 3.14

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The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming co
salantis [7]

Answer:

(b) 0.30 atm

Step-by-step explanation:

Given data

Initial pressure= 1.2atm

Initial volume= 1.0L

Final volume= 4.0L

Final pressure= ???

Let us apply the gas formula to find the Final pressure

P1V1= P2V2

Substitute

1.2*1= x*4

Divide both sides by 4

1.2/4= x

x= 0.3atm

Hence the final pressure is 0.3 atm

5 0
2 years ago
Please can someone help quickly
rodikova [14]
((5-2)*180)/5=SPT
SPT=108
360-(108+90)=RPT
RPT=162
((n-2)*180)/n=162
162n=(n-2)*180
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.1n=2
n=20
8 0
3 years ago
Please Help With Steps DUE BY 4 PM EST
soldi70 [24.7K]

Answer:

8

Step-by-step explanation:

4 (0 -2)

4(-2) = -8

0 - 1 = -1

-8 / -1 = 8

7 0
3 years ago
Square perimeter= 20 triangle base= 3 and height =3.5 find the percentage of the area inside the square shaded
Lisa [10]

Answer:

Area of geometric figures mentioned calculated.

Step-by-step explanation:

Square Perimeter = 4 x sides of square = 20. So, each equal side of square = 20 / 4 = 5

Area of square = ( Side )^2 = ( 5 )^2 = 25

Area of triangle = 1/2 (Base) (Height) = 1/2 x 3 x 3.5 = 5.25

3 0
3 years ago
Hey does anyone know this
Readme [11.4K]
- Use the formula V = π <span>∙ r2 ∙ h.
- Plug into the equation. 27</span>π(cubed)=π∙3(2)∙h
-Solve. 27π(3)=9π∙h
27π/9π=3π
I believe the height is 3π.
<span>Hope this helps

</span>
8 0
3 years ago
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