Perform the indicated operation, whenever possible.Let A = 
and B = 
. Find A - B.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.An upholsterer wants to reupholster 210 chairs for a banquet hall. If each chair needs 
pound of brass tacks, how many pounds of brass tacks are needed?
A. 3 pounds B. 1470 pounds C. 30 pounds D. 147 pounds
Find all the first order partial derivatives for the following function.f(x, y, z) = cos x sin2 yz
A. 
= sin x sin2 yz; 
= -2z cos x sin yz cos yz; 
= - 2y cos x sin yz cos yz
B. 
= -sin x sin2 yz; 
= z cos x sin yz cos yz; 
= y cos x sin yz cos yz
C. 
= sin x sin2 yz; 
= - cos x sin yz cos yz; 
= -cos x sin yz cos yz
D. 
= -sin x sin2 yz; 
= 2z cos x sin yz cos yz ; 
= 2y cos x sin yz cos yz
The function Y2 is defined as Y1 + k for some real number k. Based upon the given information about Y1 and Y2, find k. 
A. -1 B. -2 C. 2 D. 1
Find an equation for the line with the given properties.The solid line L contains the point (4, 5) and is parallel to the dotted line whose equation is 
Give the equation for the line L in slope-intercept form.
A. y = 2x - 3 B. y - 5 = 2(x - 4) C. y = 2x + 1 D. y = 2x + b