What is simplest rationalizing factor of square rooot of a + square root of b

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking: