Calculate the volume (the cone has been cut out). Round your answer to the nearest hundredths.

436.60 cm

Step-by-step explanation:

The volume of a cube is just length x width x height, so 8^3 or 512. Then the volume of a cone is 1/3pi*r^2*h. This gives you 24 pi, or about 75.4 cm. You then need to subtract 24 pi from 512, which gives you 436.6 cm^3.

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional