Question

The dimensions of a refrigerator are: height = 4x - 3 feet, length = x + 5 feet, and width = x - 2 feet. What is the volume of the refrigerator?



Select one:
a. 4x3 + 12x2 - 40x + 30
b. 4x3 + 9x2 - 49x + 30
c. 4x3 - 3x2 - 40x + 30
d. 4x3 - 8x2 - 15x + 30

Answer 1

just height x length x width

Answer 2

i got B (: how about you?

Answer 3

how do you multiply all of this?

Answer 4

One by one (:

Answer 5

so 4x-3 and x+5 first?

Answer 6

i got 4x^2+17x-15

Answer 7

it'll be more easy if you multiply (x+5) and (x-2) first, I think. But that's not a problem, just continue (:

Answer 8

is it x^2+3x-10?

Answer 9

@Kaederfds is it B? that's what I got

Answer 10

yes, it is B. You're true (:!