Find the distance between
p(-2a,2a) and Q(2a,-2a)

answer4 to the second power is 16

and 4 to the third power is 64,

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation:

step-by-step explanation:

im not sure what the answer is

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."