How do you Simplify x/7x +x^2

1 answer:

4 0

I'm assuming you meant to write $\frac{x}{7x+x^2}$

If so, then factor out an 'x' from the denominator and cancel

 $\frac{x}{7x+x^2}$

 $\frac{x}{x(7+x)}$

 $\frac{1}{7+x}$

So the answer is $\frac{1}{7+x}$

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What is the approximate area of the shaded portion of the diagram? (Use 3.14 as an estimate for pi.)

Nadusha1986 [10]

Answer:

218

Step-by-step explanation:

first find the area of the circle-

$A=\pi r^{2} \\A=\pi 10^{2} \\A=100\pi \\A=314$

to find the area of the triangle, we need the base and the height. The base we know is 16, since we don't know the height yet, use the Pythagorean theorem to find the height. One leg is 16 the hypotenuse is 20 (2* the radius).

$a^{2} +b^{2} =c^{2} \\a^{2} +16^{2} =20^{2} \\a^{2} +256=400\\a^{2} =144\\a=12$