Solve the given equation or inequality. If an equation is given, then write the solution set in set notation. If an inequality is given, then write the solution set in interval notation. - 4 = 12

A. {9}
B. {9, -23}
C. {11, 22}
D. {16, -16}

Answer: B

Mathematics

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Parametric equations and 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 sin t, y = 4 cos t, 0 ? t ? 2?

A. +  = 1

Counterclockwise from (5, 0) to (5, 0), one rotation
B. +  = 1

Counterclockwise from (0, 4) to (0, 4), one rotation
C. +  = 1

Counterclockwise from (0, 5) to (0, 5), one rotation
D. +  = 1

Counterclockwise from (4, 0) to (4, 0), one rotation