Please help me!! (x+5) (x-2) Any work out or help would be appreciated!! Thanks! :)

Mathematics

1 answer:

Lostsunrise [7]4 years ago

4 0

Answer:

Step-by-step explanation:

If you treat (x+5) as a single value and (x-2) as the values of x and +2, you can distribute (x+5) to x and +2: ( (x-5)*x + (x-5)*2 ). Then you can treat x-5 as the values of x and -5 and distribute those to the numbers next to them: (×^2 - 5x) + (2x - 10). This results in x^2 -3x - 10.

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20) Find the volume of a sphere with a diameter of 8.

weqwewe [10]

Answer:

C) 256/3 pi

Step-by-step explanation:

Volume of a sphere is 4/3 × pi × r^3

The radius is half the diameter = 4

$\frac{4 \pi \times {4}^{3} }{3} \\ = \frac{4 (64)\pi}{3} \\ = \frac{256\pi}{3}$