To find:
The volume of the water in the cup when it is full.
Solution:
The volume of the water is equal to the difference of the volume of the small cone and the larger cone.
Here, the ratio of the radius of both cones is equal to the ratio of their heights. SO,

The radius of the larger cone is 4.5 cm.
So, the volume of the water is:

The volume of water when the cup is full is 332.64 cm^2.
Answer:
B) 2(3x^2+10x+15
Step-by-step explanation:
I haven't done that in a while, but i think its C
Answer:
Step-by-step explanation:
1. volum of half cylinder + volume of the prism= (4.5*4.5*314)/2 + 9*11*6 = 31.7925 * 594 = 625.792
2. are or base (hex) * height =height* perimete* apothem /2 = 5*(8*6*6.9)/2 = 828
6 sec can take penny to strike the ground.
Solution:
Given data:
feet
feet

Re-arrange the terms from greatest degree to smallest degree.

We can solve it by applying quadratic formula,

Here a = –16, b = 48, c = 288




Now, write find two t's using plus and minus operation.


t = –3 (or) t = 6
We cannot write time is negative. so neglect t = –3.
Therefore t = 6.
Hence 6 sec can take penny to strike the ground.