Solve the logarithmic equation symbolically.log (9 - x) = 0.6

A. x = 10-8.4
B. x = -100.6/9
C. x = 5.01892829
D. x = -109.6


Answer: C

Mathematics

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Solve.A rare baseball card was sold in 1990 for $ 227,000. The card was then resold in 1998 for $ 451,000. Assume that the card's value increases exponentially, and find an exponential function V(t) that fits the data. (Round decimals to three places.)

A. V(t) = 227e0.764t, where t is the number of years after 1990. B. V(t) = 227,000e0.086t, where t is the number of years after 1990. C. V(t) = 227,000e0.764t, where t is the number of years after 1990. D. V(t) = 227e0.086t, where t is the number of years after 1990.

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Solve the problem.Find the magnitude of the torque in foot-pounds at point P for the following lever: = 7 in. and  = 20 lb

A. 11.41 ft-lb B. 10.57 ft-lb C. 4.93 ft-lb D. 140 ft-lb

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Use an integer or rational number to express the number representing change.Sales in Jeff's Toys Shop decline 5.7% from last month to this month.

A. 5.7 B. -5.7

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Decide whether the statement is true or false.The equation of a semicircle that is the upper half of the circle centered at the origin with radius 4 is .

A. True B. False

Mathematics