Use the graph of the function to estimate the x-intercepts.g(x) = 2x2 + 5x - 3
A. x = -3, x = -0.5
B. x = -0.5, x = 3
C. x = -2, x = 3
D. x = -3, x = 0.5
Answer: D
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Solve the problem.A circular hole is filled with concrete to make a footing for a load-bearing pier. The hole measures 18 inches across and requires 1.5 bags of concrete in order to fill it to ground level. What is the depth of the hole? Round your answer to the nearest inch. (One bag of concrete, when mixed with the appropriate amount of water, makes 1800 in.3 of material.)
A. 8 in. B. 11 in. C. 17 in. D. 15 in.
Subtract.
- 
A. 
B. 
C. 
D. 
Use either the binomial theorem or Pascal's Triangle to expand the binomial.(4x - 1)5
A. 1024x5 - 256x4 + 64x3 - 16x2 + 4x - 1 B. 1024x5 + 20x4 - 160x3 - 160x2 + 20x - 1 C. (16x2 - 8x + 1)5 D. 1024x5 - 1280x4 + 640x3 - 160x2 + 20x - 1
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856