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Arlecino [84]
3 years ago
11

Choose the correct formula for the function h. HELP NEEDED ASAP

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

Answer:

The answer is C.

Step-by-step explanation:

h(x) = 3x + 2 - 1

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The length of a rectangle is nine inches more than its width. Its area is 486 square inches. Find the width and length of the re
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Substituting gives ...

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<em>Comment on factoring</em>

There are a number of ways to solve quadratics. Apart from using a graphing calculator, one of the easiest is factoring. Here, we're looking for factors of -486 that have a sum of 9.

486 = 2 × 3^5, so we might guess that the factors of interest are -2·3² = -18 and 3·3² = 27. These turn out to be correct: -18 +27 = 9; (-18)(27) = -486.

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