Name the curve with the given polar equation. If it is a conic, give its eccentricity.r = 3

A. Horizontal line passing through (0, 3)
B. Vertical line passing through (3, 0)
C. Circle with center at the origin and radius 3
D. Parabola with vertex at the origin and opening upward


Answer: C

Mathematics

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Evaluate the integral.

A.
B.
C.
D.

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Find the volume of the circular cylinder. Use 3.14 or  for ? as indicated.Use  for ?.

A. 5280 m3
B.

105,600 m3

C. 443,520 m3
D. 422,400 m3

Mathematics

Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.x2 + x - 20

A. prime B. (x - 4)(x + 5) C. (x - 5)(x + 4) D. (x + 1)(x - 20)

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Solve the system by substitution.0.3x + 0.9y = 1.8  x - 0.5y = -4.5

A. {(-3, 3)} B. {(3, -3)} C. ? D. {(-0.3, 0.3)}

Mathematics