Find the sum.Find the sum of the first 30 terms of the arithmetic sequence: 7, 14, 21, 28, . . .
A. 3360
B. 217
C. 3265
D. 3255
Answer: D
Mathematics
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Find the partial sum of the given sequence.S6 of the sequence an = 3(5)n - 1
A. 11718 B. 93 C. 3906 D. 910
Mathematics
Classify as an expression or an equation.7x + 1
A. Equation B. Expression
Mathematics
Multiply.1059
A. 93.4 B. 953.1 C. 9531 D. 95.31
Mathematics
Perform the indicated operations.(2n7 - 5n5 - 2n) + (9n7 + 9n5)
A. 11n7 - 4n5 + 2n B. 11n7 - 4n5 - 2n C. 11n7 + 4n5 - 2n D. 11n7 + 4n5 + 2n
Mathematics