Can someone help me out solved this problem plz! I need help ASAP! Help me I will mark you as brainiest

47

Step-by-step explanation:

A triangle is 180 and subtract 90 and 43 from it and you get the angle that is left over which is 47

30

step-by-step explanation:

idk

i hope i

- "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."