Find P(18 ? x ? 21) given that the distribution for x is Normal (20, 2.5).

What will be an ideal response?


0.4435

Mathematics

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Evaluate the integral. dx

A. 8 5/4 + C
B.  5/4 + C
C. 10 5/4 + C
D. -  -3/4 + C

Mathematics

Solve the problem.The total number of votes in the weighted voting system  is

A. 34. B. 9. C. 10. D. 36. E. none of these

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Solve the problem.A man has a total of $110,000 invested in three rental properties. One property earns 7.5% per year on its investment, the second earns 9%, and the third earns 10%. The three properties earn a total of $9600 per year. What is the largest amount that could be invested at 7.5%?

A. $50,000 B. $56,000 C. $110,000 D. $54,000

Mathematics

Add or subtract. Write the answer in lowest terms. - 

A.
B.
C.
D.

Mathematics