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3 years ago

10

What is the product of the polynomials below? (x-9)(x+2)

2 answers:

Leno4ka [110]3 years ago

5 0

(x-9) (x+2)=x²+2x-9x-18=x²-7x-18

kaheart [24]3 years ago

4 0

Use distributive property: a(b +/- c) = ab +/ ac.

(x - 9)(x + 2) = (x)(x) + (x)(2) - (9)(x) - (9)(2) = x² + 2x - 9x - 18

= x² -7x -18

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Delicious77 [7]

Answer:

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Step-by-step explanation:

So 43 degrees, you know the length of the opposite side (27) and the angle (43 degrees), the only unknown is the hypotenuse. So you're looking for a trigonometric ratio that uses the angle (all of them do, except technically the inverse don't), the opposite side, and the hypotenuse. Sine is defined as $\frac{opposite}{hypotenuse}$ . So let's plug in known values:

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Multiply both sides by x

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divide both sides by sin(43)

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Normally I would use a calculator, but in this case I'll use the approximation given in the problem of 0.682

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Answer:

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3 years ago

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This may be wrong but this is how id do it.

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Step-by-step explanation:

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Step-by-step explanation:

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