Solve the problem.How many different 8-letter codes are there if only the letters A, B, C, D, E, F, G, H, and I can be used and no letter can be used more than once?
A. 9
B. 43,046,721
C. 362,880
D. 8
Answer: C
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Perform the operations. 
A. 13 B. 10 C. 8 D. 50
Round the figure to the nearest dollar.$5,282.52
A. $5,282.5 B. $5,282 C. $5,282.52 D. $5,283
A diagnostic test for a certain disease has a sensitivity of 0.76 and a specificity of 0.84. The probability that a patient has the disease is estimated as 0.15. The diagnostic test is given and returns negative. What is the posterior probability that the patient does not have the disease?
What will be an ideal response?
Find a and k and then evaluate the function. Round your answer to three decimal places when necessary.Let f(x) = 10 + a(2kx) with f(0) = 50 and f(1) = 170. Find f(3).
A. a = 4, k = 2, f(3) = 266 B. a = 40, k = 2, f(3) = 2560 C. a = 40, k = 2, f(3) = 74 D. a = 40, k = 2, f(3) = 2570