Para evitar que un poste de luz se rompa, se debe colocar un cable acero desde su punta hasta el piso como se muestra en el dibujo. El poste mide de altura 4m y el cable en el piso debe estar separado 3m de la base del poste. ¿Cuál deberá ser la medida del cable de acero para que sea de la medida exacta?

What is the smallest integer n such that n\sqrt{2} is greater than 20

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )