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lara [203]
2 years ago
9

yesterday Grace drove 41 1/2 Miles she used 1 1/4 gallons of gasoline which is the unit rate for miles per gallon

Mathematics
1 answer:
IRISSAK [1]2 years ago
6 0

Answer:

The answer should be 41 miles per hour

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

To solve this, we can imagine a line drawn directly down from the point (10,4) to the x-axis. This would make a right triangle with length 10 and height 4.

\cos\theta is equal to the length of adjacent leg to the angle divided by the length of the hypotenuse of the triangle. From the picture, we can see the adjacent leg is 10.

We can use Pythagorean's Theorem to find the hypotenuse (let c represent the length of the hypotenuse):

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c=\sqrt{116}

Thus, we know the adjacent is 10, and the hypotenuse is \sqrt{116}. This means \cos\theta=\frac{10}{\sqrt{116}}.

Hope this helps!

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