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Alisiya [41]
3 years ago
12

Factor Completely: 25x2 - 64

Mathematics
1 answer:
prohojiy [21]3 years ago
6 0
This is a difference of perfect squares which is of the form:

(a^2-b^2)

And which always factors to:

(a-b)(a+b)  

In this case:

(5x-8)(5x+8)
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Which is steeper: a road with a 12% grade or a road with a pitch of 1 in 8?
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Answer:

A road with a pitch of 1 in 8 is steeper.

Step-by-step explanation:

Let us convert these to the same units so that we can better compare them.

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