When Sami showed her mother her shape picture. Mrs. Harper decided she would glue the pieces on a white mounting board and frame the puzzle so Sami could hang it in her room. The mounting board is 12 inches by 15 inches and there will be a colored mat on top of the mounting board that Trames the letter S, which will be placed in the center of the mat and board. The mat is 1.5 inches on all sides. What is the radius of each semicircle

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

yes

step-by-step explanation: