Use the formula for the sum of the first n terms of an arithmetic sequence.Find the sum of the first 40 terms of the arithmetic sequence: -9, -13, -17, -21, . . .

A. -3473
B. -3560
C. -3480
D. -169


Answer: C

Mathematics

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Factor completely. If the polynomial cannot be factored, say it is prime.3x2 - 75

A. prime B. 3(x + 5)2 C. 3(x + 5)(x - 5) D. 3(x - 5)2

Mathematics

Perform the indicated operation. + 

A.
B.
C.
D. 0

Mathematics

Multiply. Write the answer in descending order and combine like terms.(v + 8)(v - 8)

A. v2 + 16v - 64 B. v2 - 64 C. v2 - 16v - 64 D. v2 - 16

Mathematics

Find the zeros of the polynomial function and state the multiplicity of each.f(x) = x3 + x2 - 5x - 5

A. -1, multiplicity 1; 1, multiplicity 1; , multiplicity 1; -, multiplicity 1
B. -1, multiplicity 1; 1, multiplicity 1; 5, multiplicity 1
C. -1, multiplicity 1; 1, multiplicity 1;  , multiplicity 1
D. -1, multiplicity 1;  , multiplicity 1; -, multiplicity 1

Mathematics