A hilly watershed has a basin area of 269 km2, in which elevation ranges from 311 m to 1600 m. Precipitation data is collected at 6 gauge locations. Using the information below, compute mean annual precipitation using: (i) an arithmetic mean

(ii) Thiessen polygons

(iii) the hypsometric method

answer: h

step-by-step explanation:

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

merry christmas!

~

your friendly neighborhood human spider! .

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."