Determine whether f is continuous at c.f(x) = 
;c = -7
A. not continuous
B. continuous
Answer: A
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Match the equation with the surface it defines.x2 + y2 = 81 
A. Figure 3 B. Figure 2 C. Figure 4 D. Figure 1
Refer to a normal distribution described by the following figure. The mean is ? and the standard deviation is ?.
The standard deviation ? =
A. 80 B. 108 C. 54 D. 27 E. none of these
Sketch the given exponential curve.y = 
x
A. 
B. 
C. 
D. 
Solve the problem.A store takes inventory of a popular clock at the end of each business day. The table below shows the number of clocks in stock during a 5-day period in which no new clocks were received from the distributor. What are the domain and range of the function described by the table? 
A. Domain = {1, 2, 3, 4, 5}; range = {7, 11, 12, 16, 23} B. Domain = [1, 5]; range = [7, 23] C. Domain = [7, 23]; range = [1, 5] D. Domain = {7, 11, 12, 16, 23}; range = {1, 2, 3, 4, 5}