Aramp that is being constructed must be 42 inches long and reach a ledge that is 21 inches tall. which inverse trigonometric ratio could be used to find m∠b?

Apolynomial has two terms. check all of the factoring methods that should be considered. common factor difference of cubes sum of cubes difference of squares perfect-square trinomial factoring by grouping

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!