Solve the problem.The graph shows the total cost y (in dollars) of owning and operating a minivan where x is the number of miles driven.Find the slope of the line passing through the two points shown and use your answer to complete this statement: For the range of miles shown, the cost of owning and operating a minivan increases by approximately  per 

style="vertical-align: -10.0px;" /> driven.

A. $2.11 per mile
B. $28.00 per mile
C. $0.47 per mile
D. $0.25 per mile


Answer: C

Mathematics

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For the given polar equation, write an equivalent rectangular equation. r2sin 2? = 40

A. y = 
B. y = 20x
C. y = 40x2
D. y = 

Mathematics

Solve the problem by integration.Conditions are often such that a force proportional to the velocity v tends to retard the motion of an object. Under such conditions, the acceleration of a certain object moving down an inclined plane is given by   This leads to the equation   If the object starts from rest, find the expression for the velocity as a function of time.

A. t = -ln 
B. t = ln 
C. t = -ln  + ln 10
D. t = ln   - ln 10

Mathematics

Find the measure of the dihedral angle indicated.The figure shown is a right prism whose bases are regular octagons. Find the measure of the dihedral angle between each lateral face and a base.

A. 90° B. 135° C. 45° D. 120°

Mathematics

Solve the problem.Barnes and Able sell life, health, and auto insurance. Sales for May and June are given in the matrices. Life Health AutoM = J =    Find the matrix that would give total sales for the months of May and June.

A.

B.

C.  

D.

Mathematics