Evaluate the polynomial for the given value of x.8x2 + 2x, for x = 4
A. 40
B. 120
C. 72
D. 136
Answer: D
Mathematics
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Simplify, if possible. If the answer is undefined, state so.
A. - 21 B. - 22 C. 23 D. 22
Mathematics
Graph the function.The voltage e for an alternating-current circuit is given by 
. Sketch two cycles of the voltage as a function of time. Label the point on the horizontal axis which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Mathematics
Write the phrase as a variable expression. Use x to represent "a number."A number divided by 16
A. 
B. 16x
C. x - 16
D. 
Mathematics
Solve the equation.x2 - x = 12
A. x = 1, 12 B. x = -3, 4 C. x = -3, -4 D. x = 3, 4
Mathematics