When a rock falls near the surface of Earth, it will fall 
feet in t seconds.
?
A: Make a graph of distance fallen versus time for up to 10 seconds.
?
B: How long will it take the rock to fall 68 feet? Round your answer to two decimal places if necessary.
?
C: If the time falling is doubled, how is distance fallen affected?
?
What will be an ideal response?
A:
?
?
B: 2.06 seconds.
?
C: Distance fallen is multiplied by 4.
?
Mathematics
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Use areas to evaluate the integrals.
dx, 0 < a < b
A. 18(b2 - a2)
B. 
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C. 
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D. 
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Find the real solutions of the equation.(2x + 3)1/2 = 5
A. {
}
B. {11}
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Use the power rules for exponents to simplify. Write the answer in exponential form.
4
A. 26 B. - 28 C. - 26 D. 28
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