The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r(1 - 2 cos ?) = 1
A. x2 + y2 = (2 + x)2
B. x2 + y2 = 1 + 2x
C. x2 + y2 = 2 + x
D. x2 + y2 = (1 + 2x)2
Answer: D
Mathematics
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Simplify.
A. 
B. - 
C. - 
D. 
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Compute AB, if possible.A = 
and B = 
A. not possible
B. 
C. 
D. 
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Add the numbers.3816 + 6267 + 308 + 76
A. 9367 B. 9457 C. 10,357 D. 10,467
Mathematics
Decide whether the statement is true or false. If it is false, tell why.The equation (4x - 1)2 = -1 has two real number solutions.
A. True B. False; the equation has no real number solutions. C. False; the equation has one real number solution.
Mathematics