The answer is the first option.
Answer:
BC≈8,38
Step-by-step explanation:
AB=a
BC=c
CA=b
a²+b²=c²
3.3²+7.7²=c²
√70,18=√c²
c≈8,38
The standard deviation for the combined assignment is 5 minutes.
To combine the standard deviations, we use:

With our information, we have:
The answer is 56 percent black pens
Answer:its joe mama
Step-by-step explanation:
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