Factor completely.
-5x 2 y + 10xy - 15xy 2
-5xy(x + 2 + 3y)
-5xy(x - 2 + 3y)
5xy(-x + 2 + 3y)
the correct answer is (b)

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Can you me find the missing length. i attached an image.

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.