They guy wire to support a radio tower is positioned 100 feet up the tower. it forms a 60 angle with the ground. how long is the wire?

Solve the equation by completing the square. x^2+2x=17

Find the quotient with the restriction.

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)