Find the indicated function value.Find f(4) when f(x) = 5x2 + 2x + 2.
A. 90
B. 74
C. 26
D. 86
Answer: A
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The reactance of a circuit is shown by the equation 6.28 ð 125 kHz ð 30 mH. What is the reactance?
a. 23.6 kohms b. 23.6 Mohms c. 23.6 H d. 23.6 S e. 23.6 Hz
Evaluate.83
A. 24 B. 512 C. 6561 D. 343
Solve the problem.Mel plans to fence his yard for his new puppy. The yard is a 36 ft by 46 ft rectangle. Fencing costs $5 per 10 ft section. What is the cost of the fence?
A. $164.00 B. $82.00 C. $41.00 D. $36.00
Find the vertex, focus, and directrix of the parabola with the given equation.(y + 2)2 = 20(x + 3)
A. vertex: (-2, -3) focus: (3, -3) directrix: x = -7 B. vertex: (3, 2) focus: (8, 2) directrix: x = -2 C. vertex: (-3, -2) focus: (-8, -2) directrix: x = 2 D. vertex: (-3, -2) focus: (2, -2) directrix: x = -8