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Svetllana [295]
3 years ago
14

PLEASE HELP The perimeter of a square is directly proportional to the length of one of its sides. The perimeter is 28 when the l

ength of a side is 7. What is the constant of proportionality?
Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
7 0
28/7=4. As a result, the constant of proportionality is 4. Hope it help!
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pantera1 [17]

Answer:

  3.189 seconds

Step-by-step explanation:

You want f(t) = 0, so ...

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It will take the rock about 3.189 seconds to hit the ground.

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<em>Comment on the question</em>

We note that the rock "falls" from the 120 foot high balcony by first traveling upward at a rate of 13.4 feet per second. We also note that the height function is written f(x), but uses t as the variable. That is, it should be f(t) = ...

8 0
2 years ago
how many gallons of a 50 antifreeze solution must be mixed with 90 gallons of 20% antifreeze to get a mixture that is 40% antifr
Tamiku [17]
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