What is vertex of the graph of the function below y=x^2-10x+21

If f(x) = 3-2x and g(x) =1/x+5 to what is the value (f/g)(8)

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

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