Aquality control technician checked a sample of 30 bulbs. two of the bulbs were defective. if the sample was a representative, find the number of bulbs expected to be defective in a case of 450. a.) 30 b.) 24 c.) 36 d.) 45

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?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.