Solve the problem.Give fraction notation for the amount of gas (a) in the tank and (b) used from a full tank. 
A. (a) 
; (b) 
B. (a) 
; (b) 
C. (a) 1; (b) 1
D. (a) 
; (b) 
Answer: A
Mathematics
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Solve the problem.
A building has an entry the shape of a parabolic arch 50 ft high and 40 ft wide at the base. Find an equation for the parabola if the vertex is put at the origin of the coordinate system.
A. y2 = -32x B. x2 = -32y C. x2 = -8y D. y2 = -8x
Mathematics
Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s.r = 
feet, s = 7 feet
A. 21°
B. 
°
C. 
radians
D. 21 radians
Mathematics
Find the slope of the line.y = 5
A. m = 0 B. m = -1 C. undefined slope D. m = 1
Mathematics
Simplify.82 - 3 ? 2
A. 50 B. 122 C. 58 D. 80
Mathematics