Solve by using the quadratic formula.x2 - 25 = 0
A. {-5, 5}
B. {-5}
C. {-5, 0, 5}
D. {5}
Answer: A
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Find the average value of the function f over the given region.f(x, y) = ex2 over the region bounded by 
, 
, 
, and 
.
A. 
B. 2e - 1
C. 
D. e - 1
Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = x2i + xyj + yk; C: the counterclockwise path around the perimeter of the rectangle in the x-y plane formed from the x-axis, y-axis , x = 5 and y = 11
A. 
B. -605
C. - 
D. 605
Solve the problem. Round to the nearest cent.Bathing suits are often on sale in July. The regular price of one suit is $43. With a 10% discount, what is the sale price of the suit?
A. $38.70 B. $37.70 C. $39.70 D. $4.30
Write the inequalities that describe the constraints on production.The Pen-Ink Company manufactures two ballpoint pens: silver and gold. The silver requires 7 minutes in a grinder and 12 minutes in a bonder. The gold requires 7 minutes in a grinder and 9 minutes in a bonder. The grinder can be run no more than 610 minutes per day and the bonder no more than 230 minutes per day. Let x represent the silver pens and let y represent the gold pens.
A. x + y ? 610, x + y ? 230, x + y ? 840, 
, 
B. 0 ? 19x + 16y ? 840, 
, 
C. 7x + 12y ? 610, 7x + 9y ? 230, 
, 
D. 7x + 7y ? 610, 12x + 9y ? 230, 
, 