Find the exact value.Given that cos ? = -  with ? in quadrant II, find tan 2?.

A.
B.
C.
D.


Answer: A

Mathematics

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Solve the equation.41(x - 164) = 82

A. 164 B. 82 C. 166 D. 162

Mathematics

Parametric equations and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 5 cos t, y = 5 sin t, ? ? t ? 2?

A. x2 + y2 = 1

Clockwise from (1, 0) to (1, 0), one rotation
B. x2 + y2 = 25

Clockwise from (5, 0) to (-5, 0)
C. x2 + y2 = 25

Counterclockwise from (5, 0) to (5, 0), one rotation
D. x2 + y2 = 25

Counterclockwise from (-5, 0) to (5, 0)

Mathematics

Determine an expression for the instantaneous velocity of an object moving with rectilinear motion according to the function given, if s represents displacement in terms of time.s = 3 + 6t2 + 7t5

A. 50 B. 140t3 + 12 C. 35t4 + 12t D. 35t4 + 12t + 1

Mathematics

Answer the question.What is the exponent of the third term of the expression 12y4 - 2y3 - 5y + 2y5 - 2 ?

A. 1 B. y C. -5 D. -5y

Mathematics