Answer:
C. 36π units²
Step-by-step explanation:
Surface area of a sphere: 4πr²
We need to find a common denominator for the bottom half of the fraction. To do so, we will first factor
.
Notice that both denominators have a x+1 in common. To get the common denominator, we need to multiple the
by its missing piece, (x-4)
Combine:
When dividing two fractions, we can flip the second one and multiply.
×
There is an (x+1) in the numerator and denominator that cancel.
Answer:
Answer:
-15
3
Step-by-step explanation:
6x-y=-9
6x-(15)=-9
-12x-4y=0
-12x-4(3) =0
-12-12=0