Solve the problem.A triangle has an area of 3x2 + 19x - 84. Use factoring to rewrite this expression.
A. (3x - 28)(x - 3)
B. (3x + 28)(x + 3)
C. (3x - 28)(x + 3)
D. (3x + 28)(x - 3)
Answer: D
Mathematics
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Calculate the area of the region bounded by the graphs of the given equations.y = 2x - x2, y = 2x - 4
A. 
B. 
C. 
D. 
Mathematics
Find the indicated matrix.Let A = 
and B = 
. Find A - B.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 35 feet above ground (the major axis). What should the span of the bridge be (the length of its minor axis) if the height 28 feet from the center is to be 13 feet above ground?
A. 30.16 ft B. 60.31 ft C. 43.33 ft D. 150.77 ft
Mathematics
Add or subtract.
+ 
A. 
x
B. 
C. 
D. 
Mathematics