Decide whether the statement is true or false. has the same sign as a for all nonzero real numbers a.

A. True
B. False


Answer: A

Mathematics

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Solve the problem. Where appropriate, round to the nearest tenth of a percent.The price of a printer was reduced from $400 to $160. What was the percent decrease?

A. 40% B. 65% C. 60% D. 150%

Mathematics

Evaluate the line integral of f(x,y) along the curve C.f(x, y) = y + x, C: x2 + y2 = 36 in the first quadrant from (6, 0) to (0, 6)

A. 72 B. 144 C. 36 D. 0

Mathematics

Write the fraction as a percent rounded to the nearest tenth, if necessary.

A. 187.5%  B. 80% C. 234.4%  D. 18.8% 

Mathematics

Solve by the substitution method.x + 6y = 44x + 7y = 16

A. (4, 0) B. (4, 16) C. (0, 4) D. (-4, -1)

Mathematics