Graph the ellipse. Give the coordinates of the center, as well as the values of a and b. +  = 1

A. center (0, 0), a = 7, b = 6

B. center (7, 6), a = 1, b = 1

C. center (0, 0), a = 6, b = 7

D. center (6, 7), a = 1, b = 1


Answer: C

Mathematics

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B. x2 = 
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D. x2 = - 3y

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A. 90° B. 108° C. 72° D. 54°

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Establish the identity.  = cot 

What will be an ideal response?

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Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.tan 72°

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