Rationalize the denominator. 
A. 
B. 
C. 
D. 
Answer: C
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State the number of significant digits and the implied precision of the given number.50,000.010
A. 3 significant digits, precise to the nearest thousandth B. 8 significant digits, precise to the nearest thousandth C. 2 significant digits, precise to the nearest hundredth D. 7 significant digits, precise to the nearest hundredth
Write the Hindu-Arabic numeral in expanded form.671
A. (6 × 102) + (7 × 101) + (1 × 100) B. (6 × 100) + (7 × 101) + (1 × 102) C. (6 × 103) + (7 × 102) + (1 × 101) D. (6 × 101) + (7 × 102) + (1 × 103)
Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimate exact
A. Estimate: 13,000; exact: 13,275.44 B. Estimate: 12,000; exact: 12,275.44 C. Estimate: 13,000; exact: 13,375.44 D. Estimate: 12,000; exact: 12,375.44
Determine whether the vectors v and w are parallel.v = 2i + 3j, w = 4i + 6j
A. Not parallel B. Parallel