Find all numbers that are not in the domain of the function. Then give the domain using set notation.f(x) = 
A. -3, 3; {
x ? -3, 3}
B. none; (-?, ?)
C. -11, -3, 3; {
x ? -11, -3, 3}
D. 3; {
x ? 3}
Answer: A
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Solve the problem.Any offset between a stationary radar gun and a moving target creates a "cosine effect" that reduces the radar mileage reading by the cosine of the angle between the gun and the vehicle. That is, the radar speed reading is the product of the actual reading and the cosine of the angle. Find the radar reading to the nearest hundredth for the auto shown in the figure. 
A. 30.82 mph B. 80.29 mph C. 86.93 mph D. 85.07 mph
Solve the equation.6x - x = 3 - 23
A. 5 B. 4 C. -4 D. -5
Factor completely. If the polynomial cannot be factored, say it is prime.12(x - 7)2 - 19(x - 7) - 21
A. (3x + 7)(4x + 3) B. (3x + 14)(4x + 10) C. (3x + 24)(4x + 35) D. (3x - 28)(4x - 25)
Evaluate the terms of the sum using the given information.x1 = 2, x2 = 3, x3 = -1, x4 = -3, and ?x = -0.9; f(x) = 
(Round to the nearest tenth, if necessary.)
A. -0.2 - 0.3 + 0.2 + 0.7 B. 0.4 + 0.7 - 0.1 - 0.3 C. 0.4 - 0.3 + 0.2 - 0.3 D. -0.2 + 0.7 - 0.1 + 0.7