Simplify the rational expression.
A. 
B. 
C. cannot be simplified
D. 
Answer: D
Mathematics
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Convert the mixed number into an improper fraction.3
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.Solve tan ? = 
for ?, where 0° ? ? ? 90°.
A. 60° B. 90° C. 30° D. 45°
Mathematics
For the given function expressed verbally, give a symbolic representation.Surveyors use the "link" as a unit of measure. To convert x links to y inches, multiply x by 7.92. Let y = f(x).
A. f(x) = 7.92x B. f(x) = x/7.92 C. f(x) = x + 7.92 D. f(x) = 7.92/x
Mathematics
Find the vertex and axis of symmetry of the graph of the function.f(x) = -x2 + 6x - 4
A. (3, 5) ; x = 3 B. (6, -4) ; x = 6 C. (-3, -13) ; x = -3 D. (-3, -31) ; x = -3
Mathematics