Find an equation for the ellipse with center at the origin, major axis of length , minor axis of length , and whose foci lie on the y -axis.

What will be an ideal response?


Mathematics

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Find the surface area of the surface S.S is the portion of the surface  that lies above the rectangle  and  in the x-y plane.

A. 60[4 + ln 3]
B. [4 + ln 3]
C. [4 + ln 3]
D. [4 + ln 3]

Mathematics

Sketch the complete graph of the function.f(x) = x2 + 200x - 600

A.

B.

C.

D.

Mathematics

Find the derivative of f at the given point.f(x) = -9x + 11 at x = 4

A. 11 B. -9 C. 44 D. -36

Mathematics

Solve the problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 30 seconds with an average speed of 5 feet per second. Find the average speed of the swimmer if it takes 25 seconds to finish the race.

A. 8 feet per second B. 6 feet per second C. 7 feet per second D. 5 feet per second

Mathematics