For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
Answers may vary. One possible solution is:
1. (f-1 ? f)(x) = f-1(f(x)) = f-1
= 
= 
= x;
2. (f ? f-1)(x) = f(f-1(x)) = f
= 
3 - 4 = x + 4 - 4 = x
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 4
, y = 0, x = 1
A. 
?
B. 
?
C. 8?
D. 20?
Express the number in decimal notation.7 × 10-7
A. 0.0000007 B. -700,000 C. 0.00000007 D. 0.000007
Solve the equation after making an appropriate substitution.2
2 + 
+ 2 = 0
A. 
B. 
C. 
D. 
A police cruiser hunting for a suspect pulls over and stops at a point a = 10 ft from a straight wall. The flasher on top of the cruiser revolves at a constant rate of 75°/second, and the light beam casts a spot of light as it strikes the wall. How fast is the spot of light moving along the wall at a point 50 ft from the point on the wall closest to the cruiser?
?
Round the answer to the nearest tenth, if necessary.
?
?
__________ ft/sec
Fill in the blank(s) with the appropriate word(s).