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yan [13]
4 years ago
12

A building has a window that is 12 feet high. Stan is going to use a ladder to get up to the window and decides to keep the ladd

er 5 feet away from the side of the building. How long does the ladder need to be?
Mathematics
1 answer:
olasank [31]4 years ago
3 0
Answer=13 feet long

This information describes a right triangle, with sides 5ft and 12ft.

a²+b²=c²
5²+12²=c²
25+144=c²
169=c²
√169=√c²
13=c

The ladder needs to be 13ft long
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<span>To do this, you multiply the numerator (the top number) by the other numerator. That is, 2 x 24 . The answer is 48. </span>

<span>Then, multiply the denominators (the bottom numbers) by each other. That is, 3 x 1. The answer is 3. </span>

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<span>What is one third of those 24 slices? </span>

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<span>Now you want TWO thirds. So all you do is multiply 8 by 2. </span>

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A farmer is tracking the amount of corn his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 50 models
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Answer:

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Step-by-step explanation:

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We know that the first point is 1 year and the second point is 10 years, so x_1=1 and x_2=10. Replacing values:

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Since f(x) represents the number of pounds per acre and x the number of years, we can conclude that the crop yield increased by 9 pounds per acre from year 1 to year 10.

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