The answer:
<span>the average rate of change for the first 50 seconds:
it is v= 100 m/ 50 s = 2 m/s
</span><span>Thomas speed is 2 m in each second for the first 50 seconds.
</span><span>The average rate of change for the 70 remaining seconds:
the time is between [70; 120]
so the distance is d= 200m - 40m= 160m
the average rate is
v= 160m / 70 s = 2 . 28m /s
</span>
Answer:

Step-by-step explanation:

Answer:
BC= 1.92837
Step-by-step explanation:
sin40=0.64279
or,perpendicular(BC)<em>/</em>hypotenuse(AB)=0.64279
or,BC/AB=0.64279
or,BC/3=0.64279
or,BC=0.64279 x 3
:.BC=1.92837 <u>ans</u>
Answer:
The arrow buttons on the calculator
Step-by-step explanation:
It mostly matters on what kind of calculator have but most calculators are like that.
Answer:
-8,4 and 4,-5
Step-by-step explanation: