For the given functions f and g, find the requested composite function value.f(x) = 6x + 5, g(x) = 2/x;
Find (g ? f)(3).
A. 9
B. 
C. 
D. 
Answer: B
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Find 
by using the Chain Rule. Express your final answer in terms of t.w = ex cos y + ey cos x; x = -8t, y = 3t
A. e-8t(-8 cos 3t + 3 sin 3t) e3t(3 cos -8t - 8 sin -8t) B. e-8t(-8 cos 3t - 3 sin 3t) e3t(3 cos -8t + 8 sin -8t) C. e3t(-8 cos 3t + 3 sin 3t) e-8t(3 cos -8t - 8 sin -8t) D. e3t(-8 cos 3t - 3 sin 3t) e-8t(3 cos -8t + 8 sin -8t)
Solve the problem.Vehicles in accidents often leave skid marks. To determine how fast a vehicle was traveling, officials often use a test vehicle to compare skid marks on the same section of road. If a vehicle involved in a crash left skid marks that are D feet long and a test vehicle traveling at v miles per hour leaves skid marks that are d feet long, then the speed of the vehicle in the crash is given by 
Determine V if v = 50 miles per hour, D = 289 feet, and d = 100 feet.
A. 80 miles per hour B. 85 miles per hour C. 170 miles per hour D. 95 miles per hour
Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.eln 11
A. 1 B. 10 C. 12 D. 11
Find the median.1, 10, 28, 26, 31, 45
A. 23.5 B. 28 C. 26 D. 27