Use the change of base formula to approximate the logarithm to four decimal places.log8.3 6.7
A. 0.8261
B. 1.1126
C. 0.8072
D. 0.8988
Answer: D
Mathematics
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Solve the system of equations using elimination. 
A. (3, 6) B. no solution C. (6, -3) D. infinite number of solutions
Mathematics
Calculate the arc length of the indicated portion of the curve r(t).r(t) = (3t sin t + 3 cos t)i + (3 t cos t - 3 sin t)j ; -4 ? t ? 7
A. 49.5 B. 99 C. 195 D. 97.5
Mathematics
Factor the binomial completely.49a3 - 25a
A. a(49a + 1)(a - 25) B. (7a2 + 5)(7a - 5) C. a(7a + 5)(7a - 5) D. a(7a - 5)2
Mathematics
Decide whether the statement is true or false.-5 is a solution of 5x - 6 = -31.
A. True B. False
Mathematics