Find the product of the following number.

(3 + 7j) ú (4 - 5j)
a. 12 + 13j
b. 12 - 13j
c. 47 + 13j


c. 47 + 13j

Mathematics

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Solve the problem.The printed matter on a 12 by 18 centimeter page of a book must cover 40 square centimeters. If all margins are to be the same width, how wide should they be?

A. 5 cm B. 4 cm C. 8 cm D. 2 cm

Mathematics

Solve the problem.Express that x differs from -7 by more than 3 as an inequality involving absolute value. Solve for x.

What will be an ideal response?

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Find the slope of the line passing through the pair of points: P (–1,–18); Q (13,16)

a. m = frac (17) (7) b. m = .frac (7) (17) c. m = frac (17) (7) d. m = .frac (7) (17) e. none of these

Mathematics

Solve the problem. Round your answer to the nearest tenth, if necessary.Bill can row 3 mph in still water. It takes him 3 hr 36 min to go 3 mi upstream and then return. Find the speed of the current.

A. 1.5 mph B. 2 mph C. 3 mph D. 2.5 mph

Mathematics