The multipliers of this system of equations have been determined to create opposite terms of the x-variable. 12 (negative one-sixth x minus two-thirds y = negative 5) right-arrow negative 2 x + 8 y = negative 60. 5 (two-fifths x + one-fifth y = negative 9) right-arrow 2 x + y = negative 45 What is the value of y? –30 –15 15 30

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

Awindow has the shape of a rectangle with a semi circle at the top. find the approximate area of the window using the dimensions shown. 4ft by 8ft