En una torta para un cumpleaños se han puesto 4 cintas. Una de 50 cm, otra de 40 cm, otra de 30 cm y otra de 20 cm. ¿Cuántos metros de cinta se necesitaron como mínimo?

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

Suppose that the function f is defined. , for all real numbers, as follows. _ \ 1/4x² -4 if x≠ -2 f(x)=< /_-1 if x=-2 find f(-5), f(-2), and f(4)

Why is causation so much more difficult to prove than correlation?