Answer:
volume = length×width×height
Step-by-step explanation:
box 1
12×2×7 = 24×7 =168
box 2
9×2×5 = 10×9 = 90
total vloume = 168+90 = 258cubic inches.
<span>Z $ xy then Z = Kxy. When x = 2 and y = 3, and Z = 60, our constant of variation becomes
60 = K * 2 * 3
K = 10. Our constant of proportionality equals 10. We would need that in the second part of the equation.
When x = 4 and y = 9, we have
Z = 10 * 4 * 9 = 360</span>
X^2 + 9x + 8 = 0
To find the factors we need to find two number that multiply to equal 8 but add to equal 9.
8 = 1*8 9 = 1+8
(x + 1)*(x + 8) = 0
A, because x is the number and when you add 25 more to it, it equals 32
