Solve the problem.Find two consecutive integers whose product is 380.

A. 19, 20
B. -19, -20
C. 19, -20
D. 19, 20 or -19, -20

Answer: D

Mathematics

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Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.a1 = , d = - 

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