Prove that the square root of 8+ the Square root of 2 = 3 • 2 1/2

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

The trigonometric ratios sine and secant are reciprocals of each other

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?