Find the difference. 7 - (-7)
A. 14
B. 7
C. -14
D. 0
Answer: A
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Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4j; v = 7i - 8j + 10k; w = 5i - 4j - 10k
A. 72 B. -912 C. -812 D. -192
Use the formula v = r? to find the value of the missing variable. Give an exact answer unless otherwise indicated.v = 12 ft per sec, r = 1.6 ft (Round to four decimal places when necessary.)
A. 1.9635 radian per sec B. 7.5 radians per sec C. 3.8197 radians per sec D. 0.1333 radian per sec
Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent?250%
A. 2 25
B. 2 2.5
C. 2
2.5
D. 2
25
Solve.Photography reprints cost $0.52 each at a local photo shop. Through the mail, they cost $0.44 each plus $1.20 postage and handling. How many reprints must a customer purchase to make it less expensive to use mail order?
A. More than 16 reprints B. More than 15 reprints C. More than 19 reprints D. More than 18 reprints