Solve the given equation by completing the square.4r2 + 20r = - 14

A.
B.
C.
D.


Answer: B

Mathematics

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Solve the problem.Find the center and the scale factor of the dilation shown below.

A. Center S; scale factor 1/3 B. Center R; scale factor 3 C. Center R; scale factor 1/3 D. Center S; scale factor 3

Mathematics

Find an equation for the line with the given properties.Perpendicular to the line x = -6; containing the point (4, 3)

A. y = 3 B. x = 4 C. y = 4 D. x = 3

Mathematics

Find the focus and the directrix of the parabola.(y - 9)2 = -16(x + 2)

A. Focus: (-6, 9); directrix: x = 2 B. Focus: (2, 9); directrix: x = -6 C. Focus: (-6, 9); directrix: x = -2 D. Focus: (-6, 9); directrix: y = 2

Mathematics

Use geometry to show where the point P(3, 4) is located on the template for Sam’s dartboard.

Sam is sketching a template on graph paper to use as a guide for his painted cork dart board. The diameter of Circle 1 is 2 feet and the distance between the edges of each of the next three pairs of circles is 1 foot.The distance between Circle 4 and Circle 5 is foot. Sam does not want axes through or touching his template and therefore wishes to sketch the dart board only in Quadrant I.At the closest points, he wants Circle 5 to be 1 unit from the y-axis and 1-unit from the x-axis. In this case:


Mathematics