The perimeter of a rectangle is 126 cm. the rectangle is twice as long as it is wide. what are the dimensions

21, 42

Step-by-step explanation:

draw the rectangle think about how the length is twice or two times the width which i'm calling "w" so w+w+2w+2w=126,  then 6w=126, divide by 6 to get w=21

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy