Solve the problem.The rectangle in the following figure has a perimeter of 104 inches. If the length measures (x + 6) inches and the width measures x inches, find x.
A. 23 in.
B. 667 in.
C. 24 in.
D. 52 in.
Answer: A
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Write the equation of the quadratic function whose graph is a parabola containing the given points.An egg is dropped from the top of a 1600-foot-high building. The ball is 1456 feet above the ground after 3 seconds, and it reaches level ground in 10 seconds. The height above the ground is a quadratic function of the time after the ball is thrown. Write the equation of this function.
A. y = 16x2 + 1600 B. y = -16x2 + 1600 C. y = -16x2 + 160 D. y = 16x2 - 1600
Collect like terms.-8b + 4b
A. -4b B. -12b C. -4b2 D. 4b
Give the domain and range of the relation.
A. range: (-?, -3) ? (-3, 0) ? (0, 3) ? (3, ?); domain: (-?, -10) ? (-10, 0) ? (0, 10) ? (10, ?) B. range: (-3, 0) ? (0, 3); domain: (-10, 0) ? (0, 10) C. range: (-?, ?); domain: (-?, ?) D. range: (-3, 3); domain: (-10, 10)
Answer the question.True or False: The graph of the equation y = 14 is a horizontal line.
A. True B. False