Answer:
If x varies directly as y, then x=ky. y=5 and x=2.5 are substituted into x=ky to find k.
2.5=5k
k=2.5/5
k=5.
K =5 is substituted in x=ky to find y where x is 10.
x=5y
10=5y
y=10/2
y=2
Answer:
7723/10000
Step-by-step explanation:
Answer A
Step-by-step explanation:
Because there is a zero at the begining.
The answer is B. h=<span>V<span>2π<span>r<span>2</span></span></span></span>
