Describe two methods for converting a mixed number to a decimal

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

The sum of two numbers is 86, and their difference is 20. find the two numbers

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