PLEASE I NEED HELP Name the polynomial by degree and number of terms and state the leading coefficient.
-x+7x^2-5-2x^3

2. Cubic Polynomial with leading coefficient of -28
b. Quadratic Polynomial with leading coefficient of -2
c. Cubic Trinomial with leading coefficient of -1
d. Cubic Polynomial with leading coefficient of-2

Me because some of question i don’t understand

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

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?