<span>(5x^2 + 2x + 11) − (7 + 4x − 2x^2)
= </span>5x^2 + 2x + 11 − 7 - 4x + 2x^2
= 7x^2 - 2x + 4
Answer:
A. -5+7=2
Step-by-step explanation:
Answer:
They swam 15 days
Step-by-step explanation:
Divide 48 by 3.2
C = 5/9(F - 32) = 5/9(94 - 32) = 5/9(62) = 34 4/9 C
Answer:
D) 65
Step-by-step explanation:
The formula for direct variation is
y = kx
where k is the constant of variation.
If we know y=32.5 and x=5, we can substitute in to calculate k
32.5 = k * 5
Divide each side by 5
32.5/5 = k
6.5 = k
So the equation is
y = 6.5k
Given x =10
y = 6.5*10
y = 65
