Solve the problem.A line from the top of a cliff to the ground passes just over the top of a pole 5.0 feet high and meets the ground at a point 8.0 feet from the base of the pole. If the point is 99 feet from the base of the cliff, how high is the cliff to the nearest foot?
A. 5 feet
B. 3960 feet
C. 62 feet
D. 495 feet
Answer: C
Mathematics
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Evaluate the spherical coordinate integral.
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What will be an ideal response?
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Subtract.(4x + 6) - (-8x + 6)
A. 12x B. 12x + 12 C. -4x + 12 D. 12x + 0
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Solve the problem.How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 250e-.223t, where t is the time in years? Round your answer to the nearest hundredth year.
A. 3.11 yr B. 24.76 yr C. 55.75 yr D. 27.87 yr
Mathematics