Evaluate the expression for x = -2, y = 3, and a = -4.
A. - 
B. - 
C. - 
D. - 
Answer: C
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A. right B. scalene C. equilateral D. isosceles E. none of these
Solve the problem.Two airplanes leave an airport at the same time, one going northwest (N35°W) at 423 mph and the other going east at 333 mph. How far apart are the planes after 4 hours to the nearest mile?
A. 2687 mi B. 2191 mi C. 672 mi D. 2299 mi
Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.A rubber ice-hockey puck has a 3.2 in. diameter. What is the surface area of one flat side of the puck?
A. 8 in.2 B. 4 in.2 C. 10 in.2 D. 32.2 in.2
Determine if the statement is a proportion.I. 
II. 
A. I is a proportion, II is not a proportion. B. I is not a proportion, II is a proportion. C. I and II are both proportions. D. Neither I nor II are proportions.