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Alisiya [41]
4 years ago
12

Factor Completely: 25x2 - 64

Mathematics
1 answer:
prohojiy [21]4 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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A book falls from a shelf that is 5 feet above the floor. A model for the height h in feet if an object dropped from an initial
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Answer:

About 0.559 seconds

Step-by-step explanation:

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h=-16t^2+h_0

Where h_0 is the initial height of the book, which is 5, so we can write:

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Now, we want time it took for the book to reach ground (h = 0)

So, we substitute h = 0 and solve for t:

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3 years ago
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dmitriy555 [2]

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Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP!!! GEOMETRY<br> please
Cloud [144]
Nothing else is given, so for the two triangles to be congruent, the only possible proof is the ASA theorem.
first pairs of angles: 2x+7=x+21 => x=14
second pairs of angles: 8y-4=4y+28 =>y=8
The two triangles share the same side PR
Based on the Angle-Side-Angle Triangle Congruence theorem, these two triangles are congruent with x=14, y=8
(2x+7) +(8y-4) +Q=180 =>85

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3 years ago
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I believe that the third answer is correct..... but I'm not positive.

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3 0
3 years ago
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