Add or subtract as indicated. Express the answer as a single polynomial in standard form.(4x2 + 8x + 6) + (2x2 + 6x - 3)
A. 8x2 + 10x + 5
B. 6x2 - 14x + 3
C. 6x2 + 14x + 3
D. 6x2 + 14x - 3
Answer: C
Mathematics
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Provide an appropriate response.Let G be the sphere x2 + y2 + z2 = 4. Evaluate the integral.
A. 
?
B. 
?2
C. 1024?
D. 16?
Mathematics
Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Mathematics
Solve the problem.The minute hand of a clock is 4 inches long. How far does the tip of the minute hand move in 20 minutes? Round your answer to two decimal places when necessary.
A. 9.61 in. B. 10.89 in. C. 6.64 in. D. 8.38 in.
Mathematics
Use the partial sum formula to find the partial sum of the given arithmetic sequence.Find the sum of the first 40 terms of the arithmetic sequence: -10, -6, -2, 2, . . . .
A. 2652 B. 2450 C. 2720 D. 2800
Mathematics