Camden is creating a model of a pyramid. The model created will need to be scaled up from the blueprint.

triangle ACB, point D is on segment AC between points A and C, point E is on segment BC between points B and C

If segments DE and AB are parallel, which of the following expressions will help Camden determine the length of DC?

DC equals EC times AC all over BC
DC = EC
DC equals EC times AC all over AB
DC = AB

coins of silver or gold

step-by-step explanation:

she gotta workk that a 2

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."