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faust18 [17]
3 years ago
13

Find the length of the unknown side round your answer to the nearest 10th

Mathematics
1 answer:
Bas_tet [7]3 years ago
7 0

Answer:

4.4 ft

Step-by-step explanation:

The sides of a right triangle are "tied together" mathematically by an equation called the Pythagorean theorem, which says: in any right triangle, the relationship between the two sides that make the right angle (we'll call them a and b) and the side across from it (c) is

a^2+b^2=c^2

Let's sustitute these for the values we have in our problem (measured in feet)

9^2+a^2=10^2\\81+a^2=100\\a^2=19\\a=\sqrt{19}

19 is between the perfect squares 4^2=16 and 5^2=25, so \sqrt{19} must be between 4 and 5, a little bit closer to 4. Punching the expression into the calculator confirms this with a value of \sqrt{19}\approx4.3588 which we can round to 4.4 ft.

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The Kellogg Company periodically compares sales across departments. In one particular instance, they would like to determine if
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Answer:

H₀: μs = μf

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Hello!

If the company wants to compare the sales of both departments "snacks" and "frozen foods" to see if there is any difference, the best is to compare the average number of sales of them.

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I hope it helps!

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