Answer the question.Choose the expression that is equivalent to the following: 0 + 9a
A. 9a
B. -9a
C. 0
D. 9 + a
Answer: A
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Solve the problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs $4 per foot for two opposite sides, and $5 per foot for the other two sides. Find the dimensions of the field of area 750 ft2 that would be the cheapest to enclose.
A. 34.2 ft @ $4 by 21.9 ft @ $5 B. 24.5 ft @ $4 by 30.6 ft @ $5 C. 30.6 ft @ $4 by 24.5 ft @ $5 D. 21.9 ft @ $4 by 34.2 ft @ $5
Divide.
A. 9 B. 8 C. 7 R2 D. 7 R1
Find the exact value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.Find sec ?.
A. 
B. 
C. 
D. 
Write the first four terms of the geometric sequence whose first term and common ratio are given.a = 4, r = -7
A. 4, -28, -112, -448, . . . B. 4, -28, -196, -1372, . . . C. 4, -28, 196, -1372, . . . D. 4, -28, 112, -448, . . .