Identify the equation as a parabola, circle, ellipse, or hyperbola.x2 + y2 = 25
A. Ellipse
B. Parabola
C. Circle
D. Hyperbola
Answer: C
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Decide whether the statement is true or false.The absolute value of any number is positive.
A. True B. False
Solve the problem.A rain gutter is made from sheets of aluminum that are 18 inches wide by turning up the edges to form right angles. Determine the depth of the gutter that will maximize its cross-sectional area and allow the greatest amount of water to flow.
A. 4.5 in. B. 5 in. C. 5.5 in. D. 4 in.
Solve the problem.The approach ramp used by a daredevil motorcyclist for flying over a collection of flaming railroad ties has a rise of 5.5 feet for every 10 feet in horizontal distance. Find the grade of the ramp. Round to the nearest whole percent.
A. 18% B. 0.55% C. 60% D. 55%
Name the quadrant in which the point lies or the axis on which it lies. 
A. y-axis B. Quadrant III C. x-axis D. Quadrant IV