Find the integral.

A. e(-7t2) + C
B. - e(-7t2) + C
C. e(-7t2) + C
D. - e(-7t2) + C


Answer: B

Mathematics

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Solve the system of equations by substitution.  x + 7y = -23x + y = 34

A. (7, 12) B. (12, -2) C. (-2, 3) D. (3, 7)

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Add or subtract, as indicated, and simplify the result. + 

A.
B.
C.
D.

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Graph the number along with its opposite and conjugate. ? ?

A. ?


B. ?


C. ?


D. ?


E. ?


Mathematics