Find the range of the quadratic function in interval notation.f(x) = 4x2 - 2x - 9
A. (-?, 
B. (-?, 
C. 
, ?)
D. 
, ?)
Answer: D
Mathematics
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Solve the problem.An outlet store had monthly sales of $62,000 and spent 18% of it on legal fees. How much was spent on legal fees?
A. $11,160 B. $111,600 C. $34,444 D. $344,444
Mathematics
A function f(x), a point x0, the limit of f(x) as x approaches x0, and a positive number ? is given. Find a number 
such that for all x, 0 < 
< ? ? 
< ?.f(x) = 6x - 9, L = -3, x0 = 1, and ? = 0.01
A. 0.003333 B. 0.001667 C. 0.01 D. 0.000833
Mathematics
Use logarithmic differentiation to find the derivative of y.y = cos x
A. cos x
B. cos x
C. cos x
D. 
Mathematics
Determine whether matrix B is the inverse of matrix A by finding the product AB.A = 
, B = 
A. B = A-1 B. B ? A-1
Mathematics