Write the number as a product of primes.60
A. 2 ? 3 ? 5
B. 2 ? 2 ? 3 ? 5
C. 2 ? 2 ? 2 ? 3 ? 5
D. 2 ? 2 ? 3 ? 3
Answer: B
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Solve the problem.A nuclear scientist has a sample of 
of a radioactive material which has a half-life in hours. She monitors the amount of radioactive material over a period of a day and obtains the following data. Use a graphing utility to fit an exponential function to the data. Predict the amount of material remaining at 40 hours.
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A. y = 86e-0.071x, 5.0 mg B. y = 100e-0.077x, 4.6 mg C. y = 92e-0.0686x, 5.9 mg D. y = 100e-0.077x, 6.7 mg
Draw a scatter diagram and find ?r for the data shown in the table. xy130424416714911?
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Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log
220.9
A. 0.42 B. 0.18 C. 2.77 D. 5.55
A geometric sequence is given. Find the common ratio and write out the first four terms.{sn} = {52n}
A. r = 25; s1 = 25, s2 = 625, s3 = 15,625, s4 = 390,625 B. r = 5; s1 = 25, s2 = 625, s3 = 15,625, s4 = 390,625 C. r = 25; s1 = 10, s2 = 20, s3 = 30, s4 = 40 D. r = 10; s1 = 10, s2 = 20, s3 = 30, s4 = 40