Factor the difference of two squares.49x2 - 9
A. (7x + 3)(7x + 3)
B. (7x - 3)(7x - 3)
C. (7x + 3)(7x - 3)
D. prime
Answer: C
Mathematics
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Graph.f(x) = 
x2 - 3x + 2
A. 
B. 
C. 
D. 
Mathematics
Translate the question into an equation. Do not solve.What percent of 70 is 89?
A. x = 70 ? 89 B. 70% = 89 ? x C. x ? 70 = 89 D. 70% ? x = 89
Mathematics
Solve for x.-4(x + 8) - (-5x + 7) = -7
A. x = 32 B. x = - 46 C. x = 8 D. x = - 32
Mathematics
Solve the problem.In one area, the lowest angle of elevation of the sun in winter is 20° 24'. A fence is to be built 
away from a plant in the direction of the sun. (See drawing) Find the maximum height, x , for the fence so that the plant will get full sun. Round your answer to the tenths place.
A. 5 ft B. 6.2 ft C. 4 ft D. 4.7 ft
Mathematics