Simplify.225 ÷ (15 ÷ 5)

A. 15
B. 3
C. 222
D. 75


Answer: D

Mathematics

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Find the indicated term for the arithmetic sequence with first term, a1, and common difference, d.Find a41, when a1 = -4, d = 

A. - 9
B.
C. 1
D. - 

Mathematics

Solve the problem.A survey of 145 college students was done to find out what elective courses they were taking. Let A = the set of those taking art, B = the set of those taking basketweaving, and C = the set of those taking canoeing. The study revealed the following information.n(A) = 45 n(A ? B) = 12n(B) = 55 n(A ? C) = 15n(C) = 40 n(B ? C) = 23n(A ? B ? C) = 2How many students were not taking any of these electives?

A. 63 B. 10 C. 53 D. 55

Mathematics

Find the derivative of y.y = csch 

A. -csch  coth 
B.  csch  coth 
C. -  csch  coth 
D. csch  coth 

Mathematics

Perform the division.

A. y2 + 9
B. - 9
C. + 9
D. + 

Mathematics