Find the following root if it exists.
A. -4
B. -8
C. This root does not exist as a real number
D. 4
Answer: A
Mathematics
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Identify the interval where f is increasing or decreasing, as indicated. Express your answer in interval notation.f(x) = (x + 1)2 + 1; decreasing
A. [0, 1] B. [-1, ?) C. (-?, -1] D. [-1, 0]
Mathematics
Solve.18 ? x = 1,476
A. 79 B. 81 C. 77 D. 82
Mathematics
Solve.5(2z - 5) = 9(z + 5)
A. {-20} B. {25} C. {70} D. {20}
Mathematics
Perform the indicated operation or operations. Simplify, if possible.
+ 
A. 5
B. 
C. 
D. 0
Mathematics