Solve the problem.Find the average rate of change.
Minutes Cellular Phone is Used
A. $0.75 per min
B. $1.33 per min
C. $2.44 per min
D. $0.17 per min
Answer: A
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Find the average value of the function f over the given region.f(x, y) = 
over the region bounded by 
, 
, 
, and 
.
A. 16 ln 2
B. 
ln 2
C. 4 ln 2
D. ln 2
Solve the problem.Water is falling on a surface, wetting a circular area that is expanding at a rate of 
How fast is the radius of the wetted area expanding when the radius is 
(Round your answer to four decimal places.)
A. 0.0089 mm/s B. 112.4689 mm/s C. 0.0559 mm/s D. 0.0178 mm/s
Provide an appropriate response.What does the graph of the equation 
look like?
A. The xz-plane B. The y-axis C. The z-axis D. The xy-plane
Write the number 2,600 in scientific notation and in floating-point notation (as on a calculator). Round your answers to 1 decimal place. ? Enter the number in scientific notation. __________ ? The number in floating-point notation is __________ __________.
What will be an ideal response?