Pepa salió ayer a comprar material escolar . Como necesitaba cuadernos y le gustaban los 5 colores que había ,
compró uno de cada color .
Cada cuaderno costaba 2,50 dólares.
¿Cuanto dinero se gasto en los cuadernos?
Doy 5 estrellas ayuda pls D:

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).