(5*5=25)-(14+7=21) which is basically
25-21
Answer: 136 units squared
Step-by-step explanation:
I will assume this is a rectangular prism since it isn't specified.
The surface area of a rectangular prism: SA = 2(lw+lh+wh).
Plugging in your dimensions: SA = 2(7*2 + 7*6 + 2*6) = 2(14+42+12) = 2(68) = 136 units squared.
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
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