Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.

A. 1248
B. 1440
C. 1280
D. 1552


Answer: C

Mathematics

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Multiply. Do not simplify.

A.
B.
C.
D.

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Solve using the multiplication property of equality.0 >   

A. b ? 0 B. b ? 0 C. b < 0 D. b > 0

Mathematics

Solve the equation. ?

What will be an ideal response?

Mathematics

Find the distance d(P1, P2) between the points P1 and P2.P1 = (0, 10); P2 = (-3, 10)

A. 10
B. 9
C.
D. 3

Mathematics