A conical paper cup is 30 cm tall with a radius of 10 cm. The bottom of the cup is punctured so
that the water leaks out at a rate of 977 cm3/sec. At what rate is the 4 water level changing when the water
level is 9 cm?

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

answer: 40392

step-by-step explanation:

10098 x 4 = 40392