Write the expression in the standard form a + bi.(-7 + i)(-7 - i)
A. 50
B. -48
C. 49
D. -7
Answer: A
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Solve the problem.The voltage v (in volts) induced in a tape head is given by 
where t is the time (in seconds). Find the average value of v over the interval from t = 0 to t = 2. Round to the nearest volt.
A. 6 volts B. 40 volts C. 1564 volts D. 194 volts
List the critical values of the related function. Then solve the inequality.
> 0
A. -6, 6; (-6, 6) B. -6; (-6, ?) C. No critical values; ? D. -6; (-?, -6)
Solve the linear inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.5x - 3 > 4x - 2
A. [1, ?)
B. (-5, ?)
C. (-?, 1]
D. (1, ?)
Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long will it take the ball to fall 149 feet?
A. 2.0 sec B. 4.8 sec C. 2.2 sec D. 3.1 sec