Find the limit, if it exists.
(2x5 - 2x4 + 4x3 + x2 + 5)
A. 137
B. 73
C. 41
D. 9
Answer: B
Mathematics
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Solve the equation.
x + 5 = 11
A. 
B. 
C. 15
D. 30
Mathematics
Simplify. Write answers without negative exponents. Assume that all variables represent nonzero real numbers.
-3
A. 
B. 
C. 
D. 
Mathematics
Solve the system by the substitution method.xy = 27x2 + y2 = 90
A. {(3, 9), (-3, -9), (9, 3), (-9, -3)} B. {(3, 9), (-3, -9), (3, -9), (-3, 9)} C. {(-3, -9), (-9, -3), (-3, 9), (-9, 3)} D. {(3, 9), (9, 3), (3, -9), (9, -3)}
Mathematics
Find the expected value for the random variable.
A. 9.72 B. 7.8 C. 9 D. 7.05
Mathematics