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RideAnS [48]
2 years ago
14

Can you solve these questions and explain them for me? Thank you

Mathematics
1 answer:
storchak [24]2 years ago
8 0

Step-by-step explanation:

When folding up the box, x will be the height

(30-2x) will be the length

(25-2x) will be the width so

v(x) = x(30 - 2x)(25 - 2x)

b. First, we can't have negative length or zero length so x must be Positve.

Set the other binomial equal to 0.

30 - 2x  > 0

- 2x >  - 30

x < 15

25 - 2x > 0

- 2x >  - 25

x < 12.5

So our domain is

(0,12.5), meaning our value of x must be greater than 0 and less than 12.5

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