Solve the problem.A mathematics course at a certain college suggests that of those students who get a grade of C or better on exam I, 90% get a C or better on exam II. Of those who get D or F on exam I, 70% get a D or F on exam II. This year 80% got C or better on exam I. Determine the proportion of students who are likely to get D or F on exam II.
A. 0.70
B. 0.14
C. 0.22
D. 0.78
Answer: C
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Provide an appropriate response.The life expectancy (in years) of a computer printer is distributed exponentially with k = 
. If the printer's warranty lasts 3 years, what is the probability that a printer will break down during the warranty period?
Fill in the blank(s) with the appropriate word(s).
Translate the statement into symbols. ? If by the mere force of numbers a majority should deprive a minority of any clearly written constitutional right, it might, in a moral point of view, justify revolution. (Abraham Lincoln) Let ? h: Heartily laugh w: Wholly laugh b: A bad person n: Being nice to people m: You'll meet 'em on your way down f : The mere force of numbers a majority should deprive a minority of any clearly written constitutional right r: Revolution ?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the inequality and graph the solution.v2 + 6v - 7 ? 0
A. [-7, 1]
| -7? | 1 |
B. (-?, -7] or [1, ?)
| -7? | 1 |
C. [1, ?)
| 1 |
D. (-?, -7]
| -7 |
Rewrite with only sin x and cos x.sin 3x + cos 3x
A. sin x cos2x - sin3x + cos3x - sin2x cos x B. 2 sin x cos2x + sin3x - cos3x - 2 sin2x cos x C. 2 sin x cos2 x + cos x + 1 - sin2 x + cos x D. 2 cos2x sin x + sin x - 2 sin3x + cos x - 4 cos x sin2x