Solve the problem.A student is told to work any 8 out of 10 questions on an exam. In how many different ways can he complete the exam? (The correctness of his answers has no bearing.)
A. 45
B. 100,000,000
C. 16
D. 90
Answer: A
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Find the measure of the indicated angle.Find the measure of the supplement of 133°.
A. 227° B. 47° C. not possible D. 137°
Find the ratio of net income after taxes to average owner's equity. Round to the nearest tenth of a percent.Owner's equity at beginning of year: $614,000. Owner's equity at end of year: $2,058,000. Net income after taxes: $316,500.
A. 15.4% B. 51.6% C. 23.7% D. 51.5%
Use the rational zero test to find all the rational zeros of f(x).f(x) = 5x4 + 4x3 - 81x2 - 64x + 16
A. Zeros: -4, 5, -1, 1/5 B. Zeros: -4, 4, -1, 1/5 C. Zeros: 4, -4, 1, -1 D. Zeros: 4, -4, 1, -1/5
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 (to the nearest tenth) will it take the ball to fall 92 feet?
A. 2.4 sec B. 1.4 sec C. 2.6 sec D. 1.6 sec