Drey makes $10 an hour plus $15 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week
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You can use the fact that a number raised to negative powers can be written as 1 divided by that number raised to positive number.
The value of the given expression when m = -5 and n= 3 is
Suppose we've got . then it can be rewritten as
It is because for any a except 0, and that
If base are same and there is multiplication, then there will be addition in power.
Also, know the fact that if base are same and there is division, there will be subtraction in power(subtracting since that denominator when goes up, its power gets negated(gets negative sign to the existing power)
Thus,
The given expression is
Putting m = -5 and n=3, we get:
Thus,
The value of the given expression when m = -5 and n= 3 is
Learn more about base and exponent(power) here:
<h2>Answer with explanation:</h2>
Formula for plus-four confidence interval :
, where n= Sample size.
= Sample proportion and
z* = Critical z-value.
Let p be the proportion of puppies area found with early hip dysplasia.
As per given , we have
n= 42
Since confidence interval is not given , so we assume it as 95% .
z-critical value for 95% confidence is 1.96.
Then, the required confidence interval will become :
Hence, the plus four confidence interval for p = (0.0484, 0.256)
Interpretation: We are 95% sure that the true proportion of puppies area found with early hip dysplasia lies in (0.0484, 0.256).