V= pi x r^2 x h
V/(pi x h)=r^2
square root of [V/(pixh)]=r
Answer:
4.
f(x) = (x + 2)(x + 1)(x - 3) = x^3 - 7·x - 6
a = 0 ; b = -7 ; c = -6
5.
a = -3 ∧ b = -2 ∧ c = -3
17 is the answer
3y-2=y+4
2y-2=4
2y=6
2y/2=6/2
y=3
Answer:
47
Step-by-step explanation:
Let a, b, and c be those three numbers.
When two of the three numbers are added at a time, the possible sums are 32, 39, 23. Let

Add these three equations:

Divide this equation by 2:

The sum of all three numbers is 47.