Identify and graph the polar equation.r = 6 - cos ?

A. limacon with no inner loop and no dimple

B. limacon with no inner loop and no dimple

C. limacon with inner loop

D. limacon with inner loop


Answer: B

Mathematics

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Solve the problem.A railroad tunnel is shaped like a semiellipse. The height of the tunnel at the center is 25 ft and the vertical clearance must be  at a point  from the center. Find an equation for the ellipse. 

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  +  = 1

Mathematics

Determine whether the statement is true or false.In the simplex method, a basic variable is a variable which has a coefficient of 1 and which occurs in only one equation.

A. True B. False

Mathematics

Solve the problem.Sketch a graph showing the mileage that a person is from home after x hours if that individual drives at 27.5 mph to a lake 55 miles away, stays at the lake 1.5 hours, and then returns home at a speed of 55 mph.

A.

B.

C.

Mathematics

Find the square.2

A. 2x2 + 1xy + y2
B. 4x2 + xy+ y2
C. 4x2 + y2
D. 4x2 + 1xy + y2

Mathematics