Let x = the first numberLet y = the second number x + y = 23 eq1 y = 23- x
xy = Product eq2
Substitute eq1 into eq2. Lets get eq2 in terms of x.
Product = x(23 - x)Product = - x2 + 23x
we must find the vertex has coordinate (h, k). h = -b / 2a where:a = -1b = 23
h= -23 / -2 = 11.5
<span>x = 11.5
</span>Substitute this value of x into eq1 to find y. y = 23 - xy = 23 - 11.5y = 11.5
<span>The two numbers that will give the largest product possible are 11.5 and 11.5.</span>
Answer:
class B
Step-by-step explanation:
3x9=27 or 27x1=27 hope that's useful
<h2>
Answer with explanation:</h2>
Let
be the population mean.
As per given we have,
, since alternative hypothesis is right tailed , so the test is a right-tailed test.
Test statistic : 
For, n=80
, we have

Critical z-value at
=1.645
Since the test statistic value is greater than the critical z-value, so we reject the null hypothesis, i.e. alternative hypothesis is accepted.
Conclusion: We have enough evidence to support the claim that the mean work week has increased for women at the 5% level.
Answer:
j
Step-by-step explanation: