Express the number in scientific notation.2500
A. 2.5 × 10-2
B. 2.5 × 10-3
C. 2.5 × 103
D. 2.5 × 102
Answer: C
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Solve the problem.Find all the points having an x-coordinate of 9 whose distance from the point (3, -2) is 10.
A. (9, 13), (9, -7) B. (9, -12), (9, 8) C. (9, 2), (9, -4) D. (9, 6), (9, -10)
Solve the system of equations.x2 - 3y2 = 14x2 + 3y2 = 19
A. (-1, 2) and (1, -2) B. (2, 1), (2, -1), (-2, 1), (-2, -1) C. (1, 2), (-1, 2), (1, -2), (-1, -2) D. (2, 1) and (-2, -1)
Provide an appropriate response.Twice Kayla's age can be represented by 4K.
A. True B. False
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