Convert the equation given in polar form into rectangular form.r = -5 cos ?

A. 2 + y2 = 
B. 2 + y2 = 25
C. x2 + y2 = 5
D. x = -5


Answer: A

Mathematics

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A.  + j
B. -  + j
C.  + j
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Write the word statement as an equation. Use x to represent the unknown number. Do not solve.The product of 4 and the difference of a number and 7 is the same as the sum of the number and 21.

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