Add or subtract. Simplify the answer. - 

A.
B.
C.
D.


Answer: A

Mathematics

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Estimate the slope of the curve at the indicated point.

A. 1 B. Undefined C. -1 D. 0

Mathematics

Find the indicated series by the given operation.Show that by differentiating term by term the expansion of  the result is the expansion for 

A. (1 + 2x - 3x2 + 4x3 - . . .) = -2(1 + 3x - 6x2 + . . . )
B. (1 - 4x + 6x2 - 8x3 + . . .) = -2( 2 - 6x + 12x2 - . . .)
C. (1 - 2x + 3x2 - 4x3 + . . .) = -2(1 - 3x + 6x2 - . . .)
D. (2x + 3x2 - 4x3 + . . .) = -2(1 - 3x + 6x2 - . . .)

Mathematics

Use the commutative and associative properties to simplify the expression.-5(8y)

A. 3y B. -40 + y C. 40y D. -40y

Mathematics

Solve the system of equations. Let z be the parameter. 7x + 3y + 5z = -14 3x + y + 2z = -1

A.
B. (-11 + z, 35 + z, z)
C.
D.

Mathematics