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Bezzdna [24]
3 years ago
5

Factor completely the given polynomial

Mathematics
1 answer:
kherson [118]3 years ago
6 0
I like to always factor out the negative first, so that we will have our first term be positive:
So it can be rewritten as this: -(x^2-3x-28)

Then we need to find two numbers that multiply to -28, but add up to -3.
Those two numbers are -7 and +4.

So we can rewrite as: -(x-7)(x+4)
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3 years ago
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7 0
3 years ago
Find the value of x. If necessary, round to the nearest tenth.
tankabanditka [31]

Answer:

B. 9.7 in.

Step-by-step explanation:

We have been given an image of a triangle. We are asked to find the value of x.

We will use area of triangle formula to solve our given problem.  

\text{Area of triangle}=\frac{1}{2}\times \text{Base*Height}

47\text{ in}^2=\frac{1}{2}\times x*x

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