Solve the variation problem.The distance it takes to stop a car varies directly as the square of the speed of the car. If it takes 112 feet for a car traveling at 40 miles per hour to stop, what distance is required for a speed of 
per hour?
A. 216 feet
B. 264.3 feet
C. 252 feet
D. 252.34 feet
Answer: C
Mathematics
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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) = 5x2, L =20, x0 = 2, and ? = 0.1
A. 0.00501 B. 1.99499 C. 2.00499 D. 0.00499
Mathematics
Solve.Write 6.1 as a fraction.
A. 
B. 
C. 
D. 
Mathematics
Change the polar coordinates (r, ?) to rectangular coordinates (x, y).(-10, 225°)
A. (5?, 5?)
B. (5
, 5
)
C. (5
, 5
)
D. (-5
, -5
)
Mathematics
Write an equation using the information given in the problem. Use x as the variable.When a number is divided by 4, the result is 10.
A. 4x = 10
B. 
= 10
C. 10x = 4
D. 
= 4
Mathematics