Solve the problem. Express your answer in scientific notation, and round to one decimal place. A computer can do one calculation in 1.4 × 10-7 seconds. How long would it take the computer to do a trillion (1012) calculations?
A. 1.4 × 106 seconds
B. 1.4 × 10-6 seconds
C. 1.4 × 109 seconds
D. 1.4 × 105 seconds
Answer: D
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Provide an appropriate response.Suppose that a data set has a mean of 100 and a standard deviation of 5. If every item of the data set is multiplied by a positive number k, how will this affect the mean and the standard deviation?
What will be an ideal response?
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Correct B. Incorrect; should be 951 C. Incorrect; should be 950 R26 D. Incorrect; should be 950 R22
Solve the problem.The amount of taxes collected in one year is $11,962,185,864. Round this amount to the nearest hundred-thousand.
A. $11,962,000,000 B. $11,962,200,000 C. $11,962,185,900 D. $11,962,190,000
Provide an appropriate response.Add: 467 + 83 + 8,295 + 8
A. 8,743 B. 16,847 C. 16,478 D. 8,853 E. none of the above