Write an equation in standard form for the conic shown.

A. x2 - y = 0
B. x2 + y = 0
C. x2 + y = 0
D. x2 - y = 0


Answer: B

Mathematics

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Assuming that the equations define x and y implicitly as differentiable functions   find the slope of the curve   at the given value of t.x cos t + x = 2t, y = t sin t + t, t = 

A. 2
B.
C. 2 + ?
D.

Mathematics

Find the limit.sec 

A. 0
B. -1
C. - 
D. 1

Mathematics

For the given functions f and g, find the requested function and state its domain. Write the domain in interval notation.f(x) = 2x + 4; g(x) = 3x - 8;Find f ? g.

A. (f ? g)(x) = 6x2 + 4x - 32; (-?, -32) ? (-32, ?) B. (f ? g)(x) = 5x2 - 4x - 4; (-?, ?) C. (f ? g)(x) = 6x2 - 4x - 32; (-?, ?) D. (f ? g)(x) = 6x2 - 32; (-?, -32) ? (-32, ?)

Mathematics

Solve.A picture 16 inches by 21 inches is to be mounted on a piece of matboard so that there is an even amount of mat all around the picture. How wide will the border be if the area of the border is 164 square inches?

A. 4.5 in B. 3 in C. 2 in D. 4 in

Mathematics