Solve the problem.A rectangular enclosure must have an area of at least 1200 yd2. If 160 yd of fencing is to be used, and the width cannot exceed the length, within what limits must the width of the enclosure lie?
A. 20 ? w ? 40
B. 20 ? w ? 60
C. 0 ? w ? 20
D. 40 ? w ? 60
Answer: A
Mathematics
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Find the equation of the graph.
A. y = 5 B. y = -5 C. x = -5 D. x = 5
Mathematics
Solve the problem.Jim has gotten scores of 82 and 65 on his first two tests. What score must he get on his third test to keep an average of 80 or better?
A. at least 73.5 B. at least 91 C. at least 75 D. at least 93
Mathematics
Use the information given in the figure.
How many are in B or C?
A. 59 B. 54 C. 10 D. 50
Mathematics
Determine whether the graph of the polynomial has y-axis symmetry, origin symmetry, or neither.f(x) = -x2(x + 4)(x2 - 1)
A. origin symmetry B. y-axis symmetry C. neither
Mathematics