Solve the problem.Find term 25 of the arithmetic sequence with first term 5 and common difference - .

A. 23
B. - 
C.
D. - 13


Answer: D

Mathematics

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Calculate the flux of the field F across the closed plane curve C.F = e5xi + e2yj; the curve C is the closed counterclockwise path around the triangle with vertices at   and 

A. 3e5( e-1 - 1) + (1 - e6) - 4
B. 3e5(1 - e-1) + (e6 - 1) + 4
C. 0
D. e5(1 - e-5) + (e6 - 1) - 4

Mathematics

Divide.36 ÷ 

A.
B. 9
C.
D. 4

Mathematics

Solve the problem.One printer can do a printing job in 5 hours. Another printer can do the same job in 11 hours. How long can they do the job working together?

A. 9 hours
B. 3 hours
C. 3 hours
D.  hours

Mathematics

Given matrix A, find the indicated minor or cofactor.Find the cofactor A21.A = 

A. 15 B. -15 C. -3 D. 3

Mathematics