How to do polynomial synthetic division.

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

Acircle has a circumference of 28.36 units what is the diameter of the circle

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n