If the vertices of a science classroom are located at (−3 x 1 , y 1 ) -3x1,y1 , (−3 x 2 , y 2 ) -3x2,y2 , (−3 x 3 , y 3 ) -3x3,y3 , and (−3 x 4 , y 4 ) -3x4,y4 , will the science classroom be congruent to the math classroom?

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

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."