Which final step will prove that the length of the hypotenuse, c, is StartRoot 2 EndRoot times the length of each leg?

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.