Find the modulus of the number.9i
A. -9
B. 9i
C. 9
D. 81
Answer: C
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Answer as indicated in a complete sentence.Two boxes of cereal are combined into one container. If one of the boxes contains 2 pounds 11 ounces and the other contains 
how much cereal is there in total?
A. The total amount of cereal is 6 pounds 8 ounces. B. The total amount of cereal is 6 pounds 7 ounces. C. The total amount of cereal is 5 pounds 8 ounces. D. The total amount of cereal is 5 pounds 7 ounces.
Express as a single logarithm and, if possible, simplify.
[ln (y2 - 64) - ln(y + 8)] + ln (y + y)
A. ln (y - 8)(y - y) B. ln (y - 8)2/3(y + y) C. ln (y + 8)2/3(y + y) D. ln (y - 8)2/3(y - y)
Match the given function to its graph.1) y = sin 2x2) y = 2 cos x3) y = 2 sin x4) y = cos 2xA B
C D
A. 1A, 2D, 3C, 4B B. 1A, 2C, 3D, 4B C. 1A, 2B, 3C, 4D D. 1B, 2D, 3C, 4A
Solve the problem.A rectangular board is 6 by 16 units. How far from the short sides of the board will the foci be located to determine the largest elliptical tabletop?
A. 3.0 B. 7.4 C. 5.0 D. 0.6