Find the least common denominator (LCD).
, 
A. (x - 4)(x + 1)(x + 5)
B. (x + 4)(x - 1)(x + 5)
C. (x - 1)(x + 5)
D. (x + 4)(x - 1)
Answer: B
Mathematics
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Find the sum of the series by recognizing how it is related to something familiar.
A. 
B. e4x
C. 
D. ln (1 - 4x)2
Mathematics
Choose the equation that matches the graph.
A. y2 = -8x B. x2 = -8y C. y2 = 8x D. -8y2 = x
Mathematics
Solve the system, using Cramer's rule, if possible. 7x + 6y - z = 14 x - 4y + 6z = 34-8x + y + z = -9
A. {(-2, 1, 4)} B. ? C. {(2, 6, 1)} D. {(2, 1, 6)}
Mathematics
The graph of a function is given. Use the graph to find the indicated limit and function value, or state that the limit or function value does not exist.a. 
f(x)
b. f(1)
A. a. 
f(x) = -3
b. f(1) = 1
B. a. 
f(x) = -3
b. (1) = -3
C. a. 
f(x) = -3
b. f(1) does not exist
D. a. 
f(x) = 1
b. f(1) = -3
Mathematics