Find the inverse of the one-to-one function.f(x) = (x - 4)3
A. f-1(x) = 
- 4
B. f-1(x) = 
+ 4
C. f-1(x) = 
+ 4
D. f-1(x) = 
+ 64
Answer: B
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Name the conic (horizontal ellipse, vertical hyperbola, and so on) corresponding to the given equation.
= 
A. Vertical parabola B. Horizontal hyperbola C. Horizontal parabola D. Vertical hyperbola
Solve the problem.For the study described below, identify the sample.A researcher is interested in the level of stress among emergency-room nurses in the U.S. 275 emergency-room nurses were interviewed to determine their level of stress. Each nurse was assigned a stress rating based on his or her answers to a number of questions. The average stress rating for the 275 nurses was determined.
A. The 275 emergency-room nurses interviewed B. The average stress rating for the 275 emergency-room nurses interviewed C. All emergency-room nurses in the U.S. D. The questionnaire given to the 275 emergency-room nurses interviewed
Find the curvature of the curve r(t).r(t) = (9t + 8)i - 4j + (9 - 
t2)k
A. ? = 
B. ? = 9
C. ? = 9
3/2
D. ? = 
Find the gradient field F of the function f.f(x, y, z) = x3e8x + y4z8
A. F = (1 + x)x2e8xi + y3z8j + y4z7k B. F = (3 + 8x)x2e8xi + 4y3j + 8z7k C. F = (3 + 8x)x2e8xi + (x3e8x + 4y3z8)j + (x3e8x + 8y4z7)k D. F = (3 + 8x)x2e8xi + 4y3z8j + 8y4z7k