Solve. Provide answers in interval notation. ? 17

A.
B.  ? 
C.  ? 
D.


Answer: D

Mathematics

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Solve the problem.Find the points on the curve x2 - xy + y2 = 12 where the tangent is parallel to the 

A. (4, -2), (4, 2) B. (-2, -4), (2, 4) C. (-4, -2), (-2, 2), (2, -2), (4, 2) D. (-2, -4), (-2, 2), (2, -2), (2, 4)

Mathematics

Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 8i - 2j,  w = 3i - 6j

A. 50.4° B. 77.5° C. 49.4° D. 54.7°

Mathematics

Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(3x - 8)(x + 5)

A. 3x2 - 40x + 7 B. 3x2 + 5x - 40 C. 3x2 + 7x + 7 D. 3x2 + 7x - 40

Mathematics

Solve the equation by factoring.x2 = x + 72

A. {-8, -9} B. {1, 72} C. {8, 9} D. {-8, 9}

Mathematics