A billboard at ground level has a support length of 26 feet that extends from the top of the billboard to the ground. A post that is 5 feet tall is attached to the support and is 4 feet from where the base of the support is attached to the ground. In the figure shown, the distance, in feet, from the base of the billboard to the base of the support is labeled I. billboard - 26 post Assuming the post and bill board are parallel to each other (and perpendicular to the ground) we can prove the smaller triangle is similar to the larger triangle by [ Select ] Using the given information along with pythagorean theorem and proportions, x = [ Select ]B A C Select all expressions that must be equivalent to cos A . A sin 2 B sin y C cos y" D cos (90 - y) E cos (90 - 2) F sin (90 - y) G sin (90 - z)Round your answer to the nearest hundredth What is the height. in feet. of the tree? The height i5 __ feet Part A A seesaw with the construction shown is being built at a playground. The seating board will be 8 feet long, and the board will make an angle of 25" when it touches the ground. Q 8 feet seating board R central support 25 S T The height of the central support is approximately [a] feet. Round answer to the nearest tenth(b) Part B The seesaw moves and the angle created by the left side of the seating board and the central support is now 80". seating board R 80 central support Using the answer found in part B, find the height in feet from the ground to point Q. Round answer to the nearest tenths. 1.0 foot O 3.4 feet O 0.5 feet O 4.0 feetB A C In right triangle ABC, mZB # mZC. Let sin B = r and cos B = s. What is sin C - cos C? A r+s B r S S T DA spring is attached at one end to support B and at the other end to collar A, as represented in the figure. Collar A slides along the vertical bar between points Cand D. In the figure, the angle o is the angle created as the collar moves between points C and D. 3 ft B A When the spring is stretched and the distance from point A to point B is 5.2 feet, what is the value of 0 in degrees to the nearest tenth of a degree? O 35.2 O 45.1 O 54.8 O 60