Find the average velocity of an object which follows the position function s(t) over the given interval.s(t) = -3t2 - t, [5, 6]
A. 
B. -34
C. -2
D. - 
Answer: B
Mathematics
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How long will it take $1,400 to double itself if it is invested at 8% interest compounded semiannually? Please round the answer to the nearest tenth.
A. 8.8 years B. 11.8 years C. 9.3 years D. 7.8 years E. 9.8 years
Mathematics
Solve the equation.-6a + 3 + 7a = 14 - 26
A. a = 15 B. a = 43 C. a = -15 D. a = -43
Mathematics
Find the surface area of the figure. Use 3.14 as an approximation for ?. Round your result to the nearest tenth.A sphere with r = 5.8 yd
A. 140.8 yd2 B. 422.4 yd2 C. 816.9 yd2 D. 105.6 yd2
Mathematics
Determine whether the expression is a polynomial.
A. Yes B. No
Mathematics