Volume is 381.51
the formula is v=4/3x pi x radius^3
half of 9 is 4.5
so 4/3x3.14x4.5^3
that gives us an answer of 381.51
So first we find the change
45 to 15=45-15=30
change is 30
rate of change=(change)/(original)
original=45
change=30
30/45=10/15=2/3=0.66666666=66%
rate of change is 66.66%
Parallel means the lines will never touch. so look at the photo and find out why this is the answer.
here is you're answer:
BD, AC, FH
