For points  in quadrant IV, the ratio  is always negative because x is always positive and y is always negative. In what other quadrant is the ratio

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What will be an ideal response?

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II

Mathematics

150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.Carol scored 75 points on the exam. In approximately what percentile of the class does this score place her?

A. 34th percentile B. 95th percentile C. 84th percentile D. 68th percentile E. none of these

Solve the problem.The entrance to a tent is the shape of an equilateral triangle. If the base of the tent is 6 ft wide, how tall is the tent? (Give an exact answer.)

A. 9 ft
B. 3 ft
C. 54 ft
D. 3 ft

Divide.

A. x2 - 5 + 
B. 4x2 + 5x - 5 +  
C. 4x2 + 5x - 5 +  
D. 4x2 + 5x - 5

Provide an appropriate response.Choose the expression that is equivalent to the following: 2(7a) + 2(5b)

A. 4(12ab) B. 2(12ab) C. 2(7a + 5b) D. 4(7a + 5b)