Why is f (t) = (3x + 3)? + not the vertex form of f (x) = 9r2 + 2x + 1? (1 point) O The variable x has a coefficient.
O The expression is not the product of two binomials.
O Some of the terms are fractions instead of integers.
O The expression has a constant outside of the squared term. ​

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