Y=2cos(x+pi)

What is the horizontal shift?
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1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Closing a credit card usually _your debt ratio. a. increasesb. decreasesc. improvesd. has no effect on