A ladder leans against the side of a house. The angle of elevation of the ladder is 73° when the bottom of the ladder is 15 feet from the side of the house. Find the length of the ladder. Round your answer to the nearest tenth.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.