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For the period 1985-2001,the number y in millions of cell

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For the period 1985-2001,the number y in millions of cell phone service subscribers in the U.S. can be modeled by the function y=0.7x^2-4.3+5.5 where x is the number of years since 1985. In what year were there 16000000 cell phone users.

and:::::

In Geometry: Use the given area A of the rectanghle to find the value of x. Then give the dimensions of the rectangle. A=91m^2 side is (x=2)m and long side is (2x=3)m

I guess I don't understand. The question is A=91m@ The right and left of the rectangle are (x+2)m and the top and bottom are (2x+3)m. I have to find the value of x and then give the dimensions of the rectangle.

Customer:replied 2 years ago.

I guess I don't understand. The question is A=91m@ The right and left of the rectangle are (x+2)m and the top and bottom are (2x+3)m. I have to find the value of x and then give the dimensions of the rectangle.

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