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)
Answer: D
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A. -2(x + 2)(x - 4) B. -2(x - 2)(x - 4) C. -2(x + 2)(x + 4) D. -2(x - 2)(x + 4)
Perform the indicated operations. Write the resulting polynomial in standard form.(5x + 4y)2
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Solve the problem.A pharmaceutical company introduces a new headache medication on the market. They advertise the product on television and find that the percentage P of people who buy the product after t weeks satisfies the function What percentage buy the product after 15 weeks?
A. 16.5% B. 11% C. 13.8% D. 15.2%
Add or subtract as indicated.- -
A. -
B. -
C. -
D. -