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F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which of the following is the graph of y= square root -x-3