Astudent factors a^6 - 64 to (a^2 - 4)(a^4 + 4a^2 + 16). which statement about (a^2 − 4)(a^4 + 4a^2 + 16) is correct?

Let w=23 . what is the value of w + 45 ?

Write an equation for the function that includes the points (2,100)and (3,100)

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations