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lys-0071 [83]
3 years ago
11

Select proportional or not proportional to correctly classify each pair of ratios.

Mathematics
1 answer:
Komok [63]3 years ago
8 0

16/36=4/9

(16)(9)=(36)(4) cross multiply

144=144 proportional

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Answer:

Part a) f(2)=1.57\ sec

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Part b) see the explanation

Part c) 2,165.43\ sec

Step-by-step explanation:

Let

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d -----> distance in feet

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f(d)=1.11\sqrt{d}

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we know that

f(2) represent the time in seconds it takes for an object to fall a distance of 2 feet

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f(2)=1.11\sqrt{2}

f(2)=1.57\ sec

therefore

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Part b) The imbrium basin is the largest basin on the moon. A reasonable domain for the height above the lowest point in the basin is given by {d|0 ≤ d ≤ 3805774}

What does this tell you about the basin?

The height of the basin is greater than or equal to 0 ft and less than or equal to 3,805,774 ft  

so

The maximum height of the basin is 3,805,774 ft

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we know that

The distance from the rim to the bottom of the basin is equal to the maximum height of the basin

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d=3,805,774\ ft

substitute the value of d in the function f(d)

f(d)=1.11\sqrt{3,805,774}

f(d)=2,165.43\ sec

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Firdavs [7]
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