Solve the polynomial inequality and graph the solution set on a number line.(x - 4)(x + 9) > 0
A. (-9, 4)
B. (-9, ?)
C. (-?, -4) ? (9, ?)
D. (-?, -9) ? (4, ?)
Answer: D
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Rewrite the expression with a positive rational exponent. Simplify, if possible.(4x2y5/2)1/2
A. 2xy5/4
B. 
C. 
D. 4xy5/4
Solve the equation graphically.-0.7x - 0.8 = 2Values of -0.7x - 0.8
A. -4 B. 4 C. -2.2 D. -0.8
Pivot the following simplex tableau about the element 2 (first column).
What will be an ideal response?
Solve.While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If the a passenger experiences a force of 28.8 newtons when the car is moving at a speed of 20 kilometers per hour and the passenger has a mass of 80 kilograms, find the force a passenger experiences when the car is moving at 70 kilometers per hour and the passenger has a mass of 90 kilograms.
A. 396.9 newtons B. 352.8 newtons C. 490 newtons D. 441 newtons