Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Answer: B
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Write the equation in standard form. Then identify the vertex of the parabola.y = x2 - 8x + 5
A. y = (x - 4)2+ 5; (-4, 5) B. y = (x - 4)2 - 11; (4, -11) C. y = (x + 4)2 - 11; (-4, -11) D. y = (x - 4)2 + 5; (4, 5)
Provide an appropriate response.Suppose that consumers will demand 100 units of a product when the price is $10 per unit, and 120 units when the price is $8 per unit. Assuming that price p and quantity q are linearly related, find the price at which 90 units are demanded.
A. $13 B. $9 C. $7 D. $11 E. $12
Write a numerical expression for the phrase and simplify it.The quotient of -18 and -9
A. 
; 
B. 
; 
C. 
; 2
D. (-9)(-18); 162
Solve.An airplane travels 700 miles against the wind in 5 hours, and makes the return trip with the same wind in 2 hours. Find the speed of the wind.
A. 245 mph B. 105 mph C. 350 mph D. 140 mph