Solve the problem.Carney and Dobler sell auto and hazard insurance. Their sales, in dollars, for the months of July and August are given in the following matrices. Auto HazardJuly: 
August: 
Find a matrix that gives the increase (decrease) in sales by each salesman for each type of insurance from July to August.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the length of the indicated portion of the curve.r(t) = (etcos t)i + (etsin t)j + 7etk, -ln 2 ? t ? 0
A. 
B. 
C. 
D. 
Mathematics
Solve the equation for all values 0 ? x ? 2?.sin22x = 1
A. No solution
B. x = 
, 
C. x = 
, 
, 
, 
D. x = 0, 
, ?, 
Mathematics
Solve the system for x and y. Show your answer as an ordered pair, (x, y).-7x - 7y = 42-4x + 2y = 12
A. Infinite solutions B. (-5, -1) C. (-4, -1) D. (-4, -2)
Mathematics
Evaluate the expression for the given value or values.6x, for x = 9
A. 15
B. 54
C. 
D. 
Mathematics