Solve the problem.What will it cost to buy ceiling molding to go around a rectangular room with length 17 ft and width 12 ft? The molding costs $2.92 per linear foot.
A. $84.68
B. $99.28
C. $70.08
D. $169.36
Answer: D
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Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = xyi + y2j - 2yzk ; D: the solid wedge cut from the first quadrant by the plane 
and the parabolic cylinder x = 16 - 25y2
A. 
B. 
C. 
D. 
Solve the problem.In 1990 the number of factory pollution incidents reported in Country X was 7500. This number had decreased roughly at a rate of 440 per year since 1982. (i) Find an equation of a line 
that describes this data, where y represents the number of pollution incidents during the year x. (Answers may vary.) (ii) Estimate the year when there were approximately 8250 incidents.
A. y = -440(x - 1988) + 7500; 1986 B. y = -440(x - 1982) + 7500; 1980 C. y = -440(x - 1990) + 7500; 1988 D. y = -7500(x - 1990) + 440; 1983
Complete the factoring.-72z7 = -9z2( )
A. 8z5 B. -8z5 C. 8z2 D. 648z
Perform the indicated operation.Add.
x2 - 
x + 
A. 
x2 + 
x + 
B. 
x2 - 
x + 
C. 
x2 - 
x + 
D. 
x2+ 
x + 