Multiply.(7z + 4)2
A. 7z2 + 56z + 16
B. 49z2 + 16
C. 7z2 + 16
D. 49z2 + 56z + 16
Answer: D
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Solve the problem that involves probabilities with dependent events. An IRS auditor randomly selects 3 tax returns (without replacement) from 49 returns of which 9 contain errors. What is the probability that she selects none of those containing errors?
A. 0.0062 B. 0.5363 C. 0.0046 D. 0.544
Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Solve the problem.On a test, Sunita has an x percent chance of correctly answering a question for which she has not studied. The chance that she will correctly answer a question for which she has studied is 2x. She is happy to see that both of the first two questions on the test are questions for which she has studied. The chance that she doesn't answer either of these questions correctly is (1 - 2x)2, where x is expressed as a decimal. Multiply this expression.
A. 1 - 4x + 4x2 B. 1 + 4x - 4x2 C. 1 - 2x + 4x2 D. 1 - 4x2
Solve the problem.A loan is made on August 5 and has a due date of April 10 during a non-leap year. Find the exact time of the loan.
A. 248 days B. 279 days C. 247 days D. 148 days