Provide an appropriate response.Suppose that Jody drove 80 miles in 2 hours. Dividing 80 by 2 tells us how many miles Jody drove in each hour. The units for this rate are miles per hour (mi/hr). If we divide 2 by 80 what information would this give us? Give an interpretation of the rate 
. What units would be used for this rate?
What will be an ideal response?
Answers will vary. The rate 
tells us how many hours it took Jody to drive each mile. The units are hours per mile (hr/mi).
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Solve the problem.Ultraviolet radiation from the sun is thought to be one factor causing skin cancer. The amount of UV radiation a person receives is a function of the thickness of the earth's ozone layer which depends on the latitude of the area where the person lives. The following data represent the latitudes and melanoma rates for nine randomly selected areas in the United States. The melanoma rates refer to a three-year period. 
Graph the data on a scatter diagram treating latitude as the independent variable. Find an equation of the line containing the points 
-4.0px;" /> and 
Express the relationship using function notation. Graph the line on the scatter diagram. Interpret the slope of the line. Use the line to predict the melanoma rate of an area with a latitude of 33.6 degrees north. 
What will be an ideal response?
Write sigma notation.-1 + 
- 
+ 
- 
+ . . .
A. 
B. 
C. 
D. 
Solve the problem. Express the answer as a mixed number when appropriate.Annie must send two packages. One of the packages weighs 15
lb and the other weighs 7
lb. What is the total weight of the two packages?
A. 22
lb
B. 21
lb
C. 15
lb
D. 23
lb
Find the mean and standard deviation of the specified probability density function.f(x) = 0.2e-0.2x for [0, ?)
A. ? = 0.5, ? = 0.5 B. ? = 5, ? = 5 C. ? = 6, ? = 6 D. ? = 0.5, ? = 0.6