Solve the inequality. Write the solution set in interval notation.x2 - 5x - 6 ? 0
A. [6, ?)
B. [-1, 6]
C. (-?, -1] ? [6, ?)
D. (-?, -1]
Answer: B
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A PDF for a continuous random variable X is given. Use the PDF to find the indicated probability.Find P(X ? 3).f(x) = 
A. 0.0498 B. -0.0498 C. 0.9502 D. -0.9502
Solve the problem.In a state with a population of 7,000,000 the average citizen spends $6,000 on housing each year. What is the total spent on housing for the state? Express answer in scientific notation.
A. $4.2 × 109 B. $42 × 1011 C. $42 × 1010 D. $4.2 × 1010
Solve the problem.A(x) = -0.015x3 + 1.05x gives the alcohol level in an average person's bloodstream x hours after drinking 8 oz of 100-proof whiskey. If the level exceeds 1.5 units, a person is legally drunk. Would a person be drunk after 5 hours?
A. Yes B. No
Provide an appropriate response.Interest rates on mortgages may vary from bank to bank.
A. True B. False