Could someone please help me? I Really need it.

Can (3,5 and square root 34) be sides on a right triangle?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

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.