Look at the picture of a scaffold used to support construction workers. The height of the scaffold can be changed by adjusting two slanting rods, one of which, labeled PR, is shown: A support structure is shown in which a right triangle PQR is formed with the right angle at Q. The length of PQ is shown as 14 feet, and the length of QR is shown as 9 feet..

Part A: What is the approximate length of rod PR? Round your answer to the nearest hundredth. Explain how you found your answer stating the theorem you used. Show all your work. (5 points)

Part B: The length of rod PR is adjusted to 18 feet. If width PQ remains the same, what is the approximate new height QR of the scaffold? Round your answer to the nearest hundredth. Show all your work.

And give a thorough explanation, please. I'll give brainliest to the person with the clearest explantion.

How do astronomers measure the amount of dark matter in the universe

1) earth's crust is made up of relatively rigid plates that ride atop earth's hot, semiliquid mantle. (2) the plates are called tectonic because they're in constant motion. (3) they can move because earth's mantle is a very hot and semiliquid fluid called magma. (4) volcanoes are a result of magma rising up or erupting through a plate, particularly where plate boundaries are moving against each other. (5) also, when plates slide against each other, causing friction along adjacent plate boundaries, earthquakes frequently occur. (6) therefore, we often find volcanoes and earthquakes along plate boundaries. (7) plates may also collide. (8) when that happens, mountain ranges are formed. (9) for example, the collision of the plate carrying the indian subcontinent created the himalayan mountains when it collided with the asian plate. 2. which sentence in this passage introduces a new topic that might begin a new paragraph? a. sentence 5 b. sentence 4 c. sentence 7 d. sentence 6

Leia a charge e o texto a seguir: a nova gestão escolar encontra-se centrada em aspectos fundamentais à consolidação de um clima organizacional favorável ao desenvolvimento das diferentes atividades que ela realiza. desses aspectos, destacamos a valorização e o investimento no capital humano, a conferência de autonomia e responsabilidades aos profissionais que integram as equipes educativas, o estímulo ao trabalho coletivo e a criação de espaços de diálogo. nesse sentido, verificamos que o clima exerce uma influência muito grande no comportamento e nos sentimentos dos professores e demais colaboradores em relação à organização escolar. relacione a charge ao texto e exemplifique clima organizacional. não se esqueça de organizar sua resposta em um parágrafo de pelo menos dez linhas, com argumentos bem fundamentados e estruturados, primando pela norma culta da escrita.