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polet [3.4K]
3 years ago
11

Help please?!?!?

Mathematics
1 answer:
Vanyuwa [196]3 years ago
7 0
The volume of any cube is

V = s3

where:
V = volume
s = side

Your side is given. Therefore, the volume is

V = (5a + 4b)3

V = (5a + 4b)(5a + 4b)(5a + 4b)

V = (25a2 + 40ab + 16b2)(5a + 4b)

V = 5a(25a2 + 40ab + 16b2) + 4b(25a2 + 40ab + 16b2)

V = 125a3 + 200a2b + 80ab2 + 100a2b + 160ab2 + 64b3

V = 125a3 + 300a2b + 240ab2 + 64b3
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Answer:

15

Step-by-step explanation:

determine the numerical length of AC

We know that Ac is equaled to ab and bc because they are the segements between ac  

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