Luis leans a 25.0 foot ladder against the side of his house to hang his Christmas lights. If the angle of elevation to the top of the ladder is 64o, what is the horizontal distance from the ladder to the base of the house?

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

answer is 8 r5

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."