The formula of the volume of a cone is v= 1/3nr^2h. Where r is the radius of the base and h is the height of the cone. Solve for the formula for r. Also determine the radius of the cone, if the volume of the cone is 125cm^3 and the height of the cone.

$79500

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

he earned 78.75 in interest.

step-by-step explanation: