Solve the problem.The braking distance y in feet that it takes for a car to stop on wet, level pavement can be estimated by 
where x is the speed of the car in miles per hour. Find the speed associated with a breaking distance of 280 feet. Round your answer to one decimal place.
A. 1260.0 miles per hour
B. 52.5 miles per hour
C. 16.7 miles per hour
D. 50.2 miles per hour
Answer: D
Mathematics
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Solve the system of linear equations.
A. (-5, -14, 6) B. (-2, -8, 3) C. (-2, -4, 2) D. (-5, -3, 6)
Mathematics
-17 < -5a + 3 ? 3
A. (0, 4]
B. (-4, 0]
C. [-4, 0)
D. [0, 4)
Mathematics
Determine whether the graph represents a linear function.
A. Yes B. No
Mathematics
Solve the system of equations using substitution.
A. x = -5, y = 0; x = 3, y = 4
or (-5, 0), (3, 4)
B. x = 0, y = 
; x = 0, y = - 
; x = 4, y = 
or 
, 
, 
C. x = 0, y = 
; x = 4, y = 
or 
, 
D. x = 5, y = 0; x = -5, y = 0; x = 3, y = 4
or (5, 0), (-5, 0), (3, 4)
Mathematics