Is 12.9+4 to the square root of 3 irrational or rational

Find the solution(s) to x^2-14+49=0

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4