Solve.The length and width of a rectangle have a sum of 86. What dimensions give the maximum area?
A. Length 43 and width 43
B. Length 34 and width 52
C. Length 33 and width 53
D. Length 42 and width 44
Answer: A
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Solve the system of equations.2x + 10y + 10z = 90x + 5y + 5z = -30x + y + z = -3
A. {(-4, -3, -3)} B. {(-3, -3, -4)} C. ? D. {(-3, -4, -3)}
Solve the problem.An elliptical riding path is to be built on a rectangular piece of property that measures 8 mi by 4 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides.A = 8 miB = 4 mi
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.For what numbers ? is f(?) = csc ? not defined?
A. integral multiples of ? (180°)
B. all real numbers
C. odd multiples of 
(90°)
D. odd multiples of ? (180°)
Locate the point on a rectangular coordinate system. Identify the quadrant , if any, in which the point lies.(-2, 18)
A. IV B. III C. II D. None