Multiply.(-4x9)(-5x6)

A. 20x54
B. -20x54
C. 20x15
D. -20x15


Answer: C

Mathematics

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Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = x2i + y2j + zk; D: the solid cube cut by the coordinate planes and the planes x = 2, y = 2, and z = 2

A. 40 B. 34 C. 24 D. 16

Mathematics

Use the division shortcut to find the quotient.5000 / 10

A. 50 B. 0 C. 500 D. 150

Mathematics

A large region of forest has been infested with gypsy moths. The region is roughly triangular, as shown in the figure on the next page. From the northernmost vertex A of the region, the distances to the other vertices are x = 25 miles south and 10 miles east (for vertex B), and 20 miles south and 28 miles east (for vertex C). Use a graphing utility to approximate the number of square miles in this region. ? ?

A. 250 mi2 B. 280 mi2 C. 260 mi2 D. 290 mi2 E. 270 mi2

Mathematics

Solve the following equation for x.x -  = - 

A. = 
B. = 
C. = - 
D. = - 

Mathematics