Evaluate the polynomial.2x3 + 5x2 - x + 41for x = -2
A. 47
B. 17
C. 35
D. 37
Answer: A
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Ohm's Law for the current I in a circuit with voltage E, resistance R, capacitance reactance XC, and inductive reactance XLis 
Use this law to solve the problem.Find E if 
R = 3, XL= 8, and XC= 4.
A. -57i B. -25i C. 25i D. 57i
Solve the problem.An airplane is sighted at the same time by two ground observers who are 3 miles apart and both directly west of the airplane. They report the angles of elevation as 10° and 
How high is the airplane?
A. 1.12 mi B. 0.94 mi C. 2.02 mi D. 0.52 mi
Find the indicated absolute extremum as well as all values of x where it occurs on the specified domain.f(x) = 
x3 - 2x2 + 3x - 4; [-2, 5]Minimum
A. -4 at x = 0
B. - 
at x = 2
C. - 
at x = -2
D. - 
at x = 1
Solve the inequality and graph the solution on the real number line.
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?
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A. 
B.
C.
D.
E.
