a 5 by 5 square is filled with numbers such that the product of the members in each row is negative. Prove that the product of the numbers in one of the columns is also negative.

49xy +34y - 72z. determine the degree of the polynomial

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?