Solve the problem.The distance D in feet it takes a car travelling at x mph to come to a full stop after hitting the brakes is given by 
Estimate the stopping distance for a car travelling at 50 mph.
A. 3,239 ft
B. 3,204 ft
C. 3,188 ft
D. 3 ft
Answer: B
Mathematics
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Solve the problem.If the deflection (in cm) of a beam is calculated by the expression 
, where x is the distance (in m) from one end of the beam to the point where the force is applied, then what is the deflection if the force is applied in the center of a 9.24 m beam? (The 1000 and 20 are exact numbers.)
A. 1.68 cm B. 1.677 cm C. -2.59 cm D. -3.04 cm
Mathematics
Graph the polynomial function. f(x) = -2x(x - 2)2 
A. 
B. 
C. 
D. 
Mathematics
Write the statement using symbols.The sum of four times x and 5 decreased by 7 is 8.
A. 7 - (4x + 5) = 8 B. 4(x + 5 - 7) = 8 C. 4x + 5 - 7 = 8 D. 4(x + 5) - 7 = 8
Mathematics
Graph the equation by plotting the intercepts.5x - 15y = 30
A. 
B. 
C. 
D. 
Mathematics