Solve the system by the substitution method.2y - x = 5x2 + y2 - 25 = 0

A.
B.
C. {(5, 0), (-5, 0), (3, 4)}
D. {(-5, 0), (3, 4)}


Answer: D

Mathematics

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A. 0 B. 1 C. 27 D. 81

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A. -  ± 
B.  ± i
C. -  ± i
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A.

B.

C.

D.

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Suppose that ? is in standard position and the given point is on the terminal side of ?. Give the exact value of the indicated trig function for ?.(5, 4); Find tan ?.

A.
B.
C.
D.

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