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
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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. 
Find the limit.
sec 
A. 0
B. -1
C. - 
D. 1
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, ?)
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