Solve the problem.Which pair of numbers whose sum is 72 has the largest product?
A. 35 and 37
B. 36 and 36
C. 30 and 42
D. 26 and 46
Answer: B
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The following is a 4 8 array of dots.
The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 3, x = 8
A. r = 
B. r = 
C. r = 
D. r = 
Find the product or quotient.
÷ 
A. 
B. 
p
C. 
D. 
p
An open rectangular box having a volume of 4in3 is to be constructed from a tin sheet. Find the dimensions of such a box if the amount of material used in its construction is to be minimal.
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Hint: Let the dimensions of the box be x by y by z. Then, xyz = 108 and the amount of material used is given by S = xy + 2yz + 2xz. Show that
?
?
Minimize f(x, y)
?
A. x = 1; y = 1; z = 2 B. x = 2; y = 2; z = 1 C. x = 2; y = 1; z = 1 D. x = 2; y = 1; z = 2