Answer:
15 pennies
Step-by-step explanation:
lost means subtract and gave him means add
21 -11 +5
15
<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.
I can try to answer this to the best of my knowledge
so if angle A is 140 degrees) then
the other two angles *together* add up to 40 degrees)
so both B and C are less than 40.
that means their sides are less than the side opposite angle A
, so less than 3. But they tell you b is 10. hope it helps
You should buy 106.25 ft 2, because if you multiply 8.5 times 12.5 you would get that answer, which is the area of the wall.
Answer:
Step-by-step explanation:
(2n - 3)(5n + 6) = 2n*(5n + 6) -3*(5n +6)
=2n*5n + 2n*6 -3*5n + (-3)*6
=10n² + 12n - 15n - 18
= 10n² -3n - 18
