Rationalize the numerator. Assume all variables represent positive numbers.
A. 
B. 
C. 
D. 
Answer: C
You might also like to view...
Give an appropriate answer.Express the following in subscript notation.(a) 
(b) 
(c) 
A. (a) fxyyy, (b) fxxy, (c) fxy B. (a) fyxxxx, (b) fyyyx, (c) fxxyy C. (a) fxy4, (b) fx3y, (c) fx2y2 D. (a) fxyyyy, (b) fxxxy, (c) fxxyy
Solve the problem.When a person bends at the waist with a straight back, the force, F, exerted by the person's lower back muscles can be estimated with the formula 
where w is the person's weight, and ? is the angle made by the person's torso relative to the horizontal. Use the sum identity for sine to simplify F.
A. F = 2.89w sin ? B. F = 2.89w (sin ? + cos ?) C. F = -2.89w cos ? D. F = 2.89w cos ?
Determine whether the polynomial is a perfect square trinomial, a difference of squares, or neither.x2 - 4
A. Perfect square trinomial B. Neither C. Difference of squares
Match the correct function to the graph. 
A. y = -2x2 - 1 B. y = -2x2 + 1 C. y = -2x2 D. y = 1 - x2