1 2 3 4 5 6 7 8 9 10 TIME REMAINING 25:35 Which graph of ordered pairs shows a proportional relationship? On a coordinate plane, points (negative 1, 2) and (2, negative 1) are plotted. On a coordinate plane, points (negative 2, negative 3) and (2, 3) are plotted. On a coordinate plane, points (negative 2, negative 1) and (2, 3) are plotted. On a coordinate plane, points (negative 1, 3) and (1, 1) are plotted.

gregory's graph is incorrect because it shows 2 inches of growth for each week when it should show 0.75 inches of growth each week.

57 732

step-by-step explanation:

i dont really.know

24

step-by-step explanation:

if it takes 8 pounds to make 12 divide 12 by 8 and you get 1.5, 1.5 x 16 = 24

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240