Identify the triangle as scalene, isosceles, or equilateral.
A. Isosceles
B. Equilateral
C. Scalene
Answer: C
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Use duality to solve the problem.Minimizew = 4y1 + 2y2subject to:3y1 + 2y2 ? 60 4y1 + y2 ? 40 y1 ? 0, y2 ? 0
A. 48 B. 64 C. 66 D. 80
Find the amplitude of the function. y = -3 cos 
x
A. 
B. 3
C. 
D. 4?
Identify which of these types of sampling is used: simple random, stratified, systematic, or convenience.A sample consists of every 20th student who leaves the library.
A. Systematic B. Stratified C. Simple random D. Convenience
Consider a function 
. If the graph of f is constant, neither increasing nor decreasing, what can be said about the graph of 
?
?
A. The graph of is above the horizontal axis.
B. The graph of is below the horizontal axis.
C. The graph of lies on the horizontal axis.
D. The graph of is increasing.