Find the sum of the first n terms of the sequence.19, 26, 33, 40, . . . ; n = 8
A. 423
B. 348
C. 272
D. 376
Answer: B
Mathematics
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Evaluate the logarithm without the use of a calculator.log7
A. 
B. 7
C. 1
D. 
Mathematics
Use a calculator to give the real number value. Round the answer to 7 decimal places.y = sin-1(-0.4848)
A. -0.5412698 B. 2.6365103 C. -0.5061345 D. -0.4888889
Mathematics
Write the number in scientific notation.0.00000013907
A. 1.3907 × 106 B. 1.3907 × 10-7 C. 1.3907 × 10-6 D. 1.3907 × 107
Mathematics
Simplify the expression. Write the result without using negative exponents. (Assume all variables represent nonzero real numbers.)
A. x5
B. x11
C. 
D. 
Mathematics