Evaluate the algebraic expression for 
and 
-5x2 - 4x
A. a) -361 b) -162
B. a) -96 b) -1692
C. a) -144 b) -2916
D. a) -64 b) -1548
Answer: B
Mathematics
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Solve and graph.-20r + 12 ? -4(4r - 2)
A. (-?, 1]
B. (1, ?)
C. (-?, 1)
D. [1, ?)
Mathematics
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 662 with r = 0.7. Write a recursive sequence that describes this data, where an denotes the insect density during year n.
A. an = 0.7 an+1 , a1 = 331
B. an = 0.7 an-1 , a1 = 662
C. an = 
, a1 = 662
D. an = 0.7 + an-1 , a1 = 662
Mathematics
Solve the inequality and graph. Express your answer in interval notation.-3(3x - 2) < -12x - 21
A. (-9, ?)
B. [-9, ?)
C. (-?, -9]
D. (-?, -9)
Mathematics
Find f"(x) for the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics