Which system of inequalities is graphed below

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

The following numbers will result in a quotient that is less than 1 when it is divided by ? a.2% e. 1 and 2/3 b. x2 f. 1/5 c. 3/10 g. 7/15 d. 5/9

Analyze the solution below. 7 3 x = −2 7 3 x(3 7 ) = −2(3 7 ) x = − 6 7 what property was used to solve the equation? property of opposites division property of equality addition property of equality multiplication property of equality