Solve the application problem.A ladder is resting against a wall. The top of the ladder touches the wall at a height of 12 feet. Find the length of the ladder if the length is 4 feet more than its distance from the wall.
A. 12 ft
B. 16 ft
C. 24 ft
D. 20 ft
Answer: D
Mathematics
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Evaluate the polynomial.8x2 + 6x + 3, when x = -2
A. 13 B. 23 C. -25 D. 19
Mathematics
Determine the correct exponential function of the form f(x) = bx whose graph is given.
A. f(x) = 
x
B. f(x) = -2x
C. f(x) = 
x
D. f(x) = 
x
Mathematics
Use the half-angle formulas to simplify the expression.
?
?
?
A. ?- ?|cos x| B. ?|cos x| C. ??|cos 4x| D. ??- |cos 4x| E. ?- ?|cos 8x|
Mathematics
Simplify the rational expression.- 
A. 
B. - 
C. - 
D. - 
Mathematics