Find the derivative of the function at the given point in the direction of A.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 
A. f-1(x) = x3 + 27
B. f-1(x) = x3 - 27
C. f-1(x) = 
D. Not one-to-one
Mathematics
Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate system and finding points of intersection.
A. {(4, -3), (3, -4)} B. {(4, 3), (3, 4)} C. {(-4, -3), (-3, -4)} D. {(-4, 3), (-3, 4)}
Mathematics
Find the exact value of the expression. Do not use a calculator.tan 30° - sin 45°
A. 
B. 
C. 
D. 
Mathematics
The (r + 1)st term of the expression (a + b)n, 0 ? r ? n, is given by 
an - rbr. Find the specified term.The 5th term of (x + 2y)14.
A. 16,016x10y4 B. 8008x4y10 C. 16,016x4y10 D. 8008x10y5
Mathematics