Sketch the region which is defined by the given conditions.0 ? ? ?
, 0 ? r ? 4
A.
B.
C.
D.
Answer: D
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Solve the problem.Mrs. Smith's second grade class of thirty students conducted a pet ownership survey. Results of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and a dog. How many of the students surveyed own only a dog?
A. 18 B. 15 C. 22 D. 10
Simplify by factoring. Assume that any variable in a radicand represents a positive real number.
A. x2 + 9
B. (x + k)2
C. (x + k)2
D. (x + k)
Solve the problem.A farmer has 260 meters of fencing and wants to enclose a rectangular area of 4200 square meters. What dimensions should he use?
A. 70 meters by 60 meters
B. 140 meters by 2 meters
C. 65 meters by 65 meters
D. meters by
meters
The graphing calculator screens show a system and the point of intersection. Choose the screen which best represents the given system.y = 2x + 34x + 3y = -6
A.
B.
C.
D.