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Lady bird [3.3K]
3 years ago
11

Mr. Alvarez wants to make a gate that is three feet wide and five feet high. He needs to cut a board to nail across the diagonal

of the gate. How long a board does he need?
Mathematics
1 answer:
bulgar [2K]3 years ago
5 0
The board will be 3 by 5
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Step-by-step explanation:

If we let the width be w, then the length is w+3.5.

This means that w(w+3.5)=11

w^2 + 3.5w - 11 = 0

2w^2 + 7w - 22 = 0 (multiply both sides by 2)

(2w+11)(w-2)=0

w = -11/2 or w = 2 (disregard w = -11/2 as distance is positive)

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4 0
2 years ago
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castortr0y [4]

Answer:

0.3

Step-by-step explanation:

6 0
2 years ago
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A unit of electricity costs 13.2 pence. On average, tanya uses 90 units of electricity per week. She pays for her bill in 12 wee
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<em><u>Explanation</u></em>

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So, her electricity bill will be of 14256 pence.

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<h2>Answer with explanation:</h2>

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3 0
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