There are 30 students in Mrs.Woodward’s class, and 1/2 of the class has their own cellphone.Of this group of students, 1/3 of th
2 answers:
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Answer: Choice B
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Explanation:
The two rules we use are
When applying the first rule to the expression your teacher gave you, we can say that:
Then applying the second rule lets us say
Therefore,
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In short, we just multiplied each exponent inside by the outer exponent 1/2.
So that explains why the exponents go from {1/4,16} to {1/8,8} for x and y in that exact order.
In order to find the average you have to add up all the data values and then find the sum of the data values.
So on average he ran about 82.5 miles.