Solve the problem.On a test, Manuel answered incorrectly 69 questions or 46% of the questions. How many questions were on the test?
A. 67
B. 0.67
C. 1500
D. 150
Answer: D
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Solve the problem.dy/dt = ky + f(t) is a population model where y is the population at time t and f(t) is some function to describe the net effect on the population. Assume k = .02 and 
when t = 0. Solve the differential equation of y when f(t) = -6t.
A. y = -300t - 15,000 - 5000e.02t B. y = 300t + 15,000 - 5000e.02t C. y = -300t + 15,000 - 5000e-.02t D. y = 300t + 15,000 - 5000e-.02t
Provide an appropriate response.A micrometer is designed so that the screw thread makes the spindle advance 0.025 in. in one complete turn. How far will the spindle advance in 30 complete turns?
A. 75 in. B. 0.075 in. C. 7.5 in. D. 0.75 in.
Solve the inequality. Write the solution set in interval notation.|4 - x| ? 9
A. [-5, ?) B. [-5, 13] C. [13, ?) D. (-?, -5] ? [13, ?)
Find the unknown side of the right triangle. Use a calculator or square root table when necessary and round to the nearest thousandth.
A. 3.5 km B. 2.646 km C. 5 km D. 4 km