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tester [92]
4 years ago
8

You drop a rock into a deep well. You can't see the rock's impact at the bottom, but you hear it after 7 seconds. The depth of t

he well is feet. Ignore air resistance. The time that passes after you drop the rock has two components: the time it takes the rock to reach the bottom of the well, and the time that it takes the sound of the impact to travel back to you. Assume the speed of sound is 1100 feet per second. Note: After t t seconds the rock has reached a depth of d feet where d=16 t 2
Mathematics
1 answer:
satela [25.4K]4 years ago
7 0
The answer is 372452374672386548725742367816293198379824687326875732487126864837264875876237865872638746189273892198468716487365876876375676653782687658728756238765728368 DONE!
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miv72 [106K]
25% of 28 is 7 (28 x 0.25)
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3 0
3 years ago
Two rectangles have the same area of 70m2. It is given that the length of the first rectangle is 4m longer and the width is 2m s
NeX [460]

Answer:

second rectangle

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first rectangle

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Step-by-step explanation:

7 0
3 years ago
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Y_Kistochka [10]

Answer:

W+h=         43+h=

Step-by-step explanation:

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8 0
3 years ago
Which sentence is incorrect? A. -4 > -7 B. 5/2 = 2.5 C. -2.5<-3 D. 2/5 = -0.4
Ket [755]

Answer:

C -2.5<-3

Step-by-step explanation:

since -3 is lower counting wise with negatives the higher the negative the number the more likely its going to be lesser than the other

3 0
3 years ago
Read 2 more answers
Tom’s height is 10 inches more than one-third of his older sister’s height.f the value of n nickels plus d dimes is c cents, wha
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Answer:

1. x=10+1/3(y)

2. n is nickles

Step-by-step explanation:

3 0
4 years ago
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