A cup was filled at a constant rate. it started empty. after 2 seconds, it held 70 cm cubes of water. the radius is 4 and te height is 7. find the percent of the cup that is filled with water after 3 seconds. this is a cone

89.51%

Step-by-step explanation:

Assuming given units are in cm

Tge rate of filling the cup is 70/2= 35 cm3/s

Volume of the cup is and replacing r with 4 cm and h with 7 cm then the volume is equivalent to

Volume filled after 3 seconds will be 3*35=105 cm3

Percentage filled is

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .