Perform the indicated operations. Express the answer as a single polynomial in standard form.6x(3x - 4)
A. -6x2
B. 18x2 - 4x
C. 18x2 - 24x
D. 3x2 - 24x
Answer: C
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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) = 700e-0.181t, where t is the time in years? Round your answer to the nearest hundredth year.
A. 36.19 years B. 40.02 years C. 126.70 years D. 3.83 years
Calculate the double integral.
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Solve the problem.Janet is training for a triathlon. Yesterday she jogged for 14 miles and then cycled another 38.5 miles. Her speed while cycling was 6 miles per hour faster than while jogging. If the total time for jogging and cycling was 4.5 hours, at what rate did she cycle?
A. 12 mph B. 14 mph C. 16 mph D. 17 mph
Write the improper fraction as a whole or mixed number.
A. 9
B. 10
C. 9
D. 8