Aiko jump roped for 20 minutes before stopping at 8:05. Just count 20 minutes back in order to see when she started.
8:05 - 20 minutes = 7:45
Answer:
-85
Explanation:
Given the mathematical expression:
First, we recall the product of signs.
So, first, we open the bracket:
We then simplify:
The result is -85.
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In interval <a, b> the average rate of change the function you count from this formula:
Here you've got a=-1 and b=1:
It -8 because if u do -5+-6+3 it =8