For the given polar equation, write an equivalent rectangular equation.r(1 - 2 cos ?) = 1

A. x2 + y2 = 1 + 2x
B. x2 + y2 = 2 + x
C.  = 1 + 2x
D.  = 2 + x


Answer: C

Mathematics

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Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -3x2 - 12x - 13

A. vertex (-2, -1)
intercept (0, -13)
 
B. vertex (2, -1)
intercept 

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intercept 
 
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A.

B.

C.

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Convert as indicated.The field behind one of the dormitories at State College contains approximately 500 square yards of grass. Convert this to square feet.

A. 1500 square feet
B. 166 square feet
C. 55 square feet
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Mathematics