Answer:
A = 28.125 * pi cm^2
A = 88.357 cm^2
Step-by-step explanation:
Area of a sector is 1/2 r^2 theta where theta is in radians
convert 45 degrees to radians
theta = 45 * pi/180 = pi/4
A = 1/2 * 15^2 * pi/4
A =1/2 * 225 * pi/4
A = 28.125 * pi cm^2
A = 88.357 cm^2
The area is 270 inches, because you would do length times width, which in this situation is 28 and 15. You multiply them, and you get 270.
Answer:
15 Kg cm²
Step-by-step explanation:
Given that V varies inversely with P then the equation relating them is
V = 
← k is the constant of variation
To find k use the condition
V = 360, P = 20, then
360 = 
( multiply both sides by 20 )
k = 7200
V = 
← equation of variation
When V = 480, then
480 = ( multiply both sides by P )
480P = 7200 ( divide both sides by 480 )
P = 15
Answer:
13.6/1
Step-by-step explanation:
204/15
Answer:
The number would be 3.
Step-by-step explanation:
This problem can be written as
5x + 9 = 24
So to solve it, you have to isolate x:
5x + 9 = 24
5x + 9 - 9 = 24 - 9
5x = 15
5x÷5 = 15÷5
x = 3
Check:
5(3) + 9
= 15 + 9
= 24
