Solve the problem.On a flywheel with a 67.7-mm radius, how long is an arc subtended by a central angle of 242°?
A. 286 mm
B. 9679 mm
C. 102,940 mm
D. 572 mm
Answer: A
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Express the given expression in simplest form with only positive exponents.
A. x16
B. x90
C. 
D. 
Solve the problem.The function 
gives the height of a projectile t seconds after it is launched. Find the height of the projectile at 
A. 2816 ft B. 3388 ft C. 3500 ft D. 2716 ft
State the domain of the rational function.f(x) = 
A. (-?, -6) ? (-6, 3) ? (3, ?) B. (-?, -3) ? (-3, 6) ? (6, ?) C. (-?, 6) ? (6, ?) D. (-?, ?)
Solve.The number of farms in a certain state has declined continually since 1950. In 1950, there were 84,294 farms and in 1995 that number had decreased to 22,521. Assuming the number of farms decreased according to the exponential model, find the value of k and write an exponential function that describes the number of farms after time t, in years, where t is the number of years since 1950.
A. k = -0.028 ; P(t) = P0e-0.028t B. k = -0.029 ; P(t) = P0e-0.029t C. k = -0.033 ; P(t) = P0e-0.033t D. k = -0.031 ; P(t) = P0e-0.031t