Find the equation in standard form of the parabola described.The focus has coordinates (0, -15), and the equation of the directrix is y = 15.
A. x2 = -60y
B. x2 = 60y
C. y2 = -60x
D. y2 = -15x
Answer: A
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x
A. 7 B. 0 C. 49 D. Does not exist
Use a proportion to solve the problem.The 13th hole at the Riverwoods Golf Course is 225 yards long. How long would it be on a model with a scale of 1.5 inches to 75 yards?
A. 2.25 inches B. 33.75 inches C. 4.5 inches D. 112.5 inches
Find values of x and y, if any, that will make the matrices equal.
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?Please enter your answer as two numbers, separated by a comma.
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Solve the problem.A real estate investor is examining a triangular plot of land. She measures each angle of the field. The sum of the first and second angles is 114° more than the measure of the third angle. If the measure of the third angle is subtracted from the measure of the second angle, the result is twice the measure of the first angle. Find the measure of each angle. (Note: The sum of the angles of a triangle is 180°.)
A. First angle is 44°, second angle is 105°, third angle is 31° B. First angle is 42°, second angle is 111°, third angle is 27° C. First angle is 38°, second angle is 109°, third angle is 33° D. First angle is 36°, second angle is 109°, third angle is 31°