Add as indicated.(14s + 12t) + (6t - 2s)
A. 12s + 18t
B. 30st
C. 16s + 18t
D. 20s + 10
Answer: A
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Find the slope of the polar curve at the indicated point.r = 7, ? = 
A. 1
B. - 
C. -
D. 0
Use a grapher to graph the function.The charge y on a certain capacitor as a function of time is given by 
Charge is measured in coulombs, and time is measured in seconds. Sketch two cycles of y as a function of t. Label the point on the horizontal axis which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Evaluate the expression for the given replacement values.
for x = -3 and z = 4
A. 24 B. -6 C. 18 D. 6
Solve the problem by estimating.In 1999, the population of Capital City was 8,075,831 and the population of Spring City was 1,942,652.. Round each population to the nearest hundred-thousand to estimate the difference in the populations of the two cities.
A. 6,133,000 B. 6,300,000 C. 6,100,000 D. 6,200,000