Find the quadratic approximation of f at x = 0.f(x) = 
A. p2(x) = 9x
B. p2(x) = 
C. p2(x) = 1 + 9x
D. p2(x) = 1 + 
Answer: B
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Solve.An earthquake was recorded with an intensity which was 
times more powerful than a reference level earthquake, or 
What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth)? The magnitude on the Richter scale of an earthquake of intensity I is 
A. 4.9 B. 13.6 C. 0.6 D. 5.9
Solve the problem.The path between three landmarks in a national park form a right triangle. The oldest living evergreen tree is at point A, the ranger station is at point B, and the natural hotspring is at point C. The right angle is at point C, and there is a 60° angle at point B. If the distance between the hotspring and the evergreen tree is 725 yards, find the distance, x, from the hotspring to the ranger station. 
A. 418.58 yd B. 1025.3 yd C. 1255.74 yd D. 512.6524 yd
Find all specified roots.Cube roots of 1.
A. 1, - 
+ 
i, - 
- 
i
B. -1, 1
C. 1, 
+ 
i, - 
+ 
i
D. 1, 
- 
i, - 
- 
i
Solve the equation graphically over the interval [0, 2?). Express solutions to the nearest hundredth.-cot x - csc x = 4
A. {0.80} B. {0.49, 3.14} C. {5.79} D. {1.25, 4.51}