Answer:
The answer is 3
Step-by-step explanation:
Answer:
D. 22
22 is in the middle
There are three numbers on both sides of 22 so it makes it even and 22 ends up being in the middle.
Hope this helps
Answer: the z score is - 1.5
Step-by-step explanation:
Since the time required to finish a test is normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = time required to finish the test
µ = mean time
σ = standard deviation
From the information given,
µ = 60 minutes
σ = 10 minutes
We want to find the z-score for a student who finishes the test in 45 minutes
For x = 45,
z = (45 - 60)/10 = - 15/10 = - 1.5
Answer:
![\large\boxed{C.\ 9\ inches\ squared}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7BC.%5C%209%5C%20inches%5C%20squared%7D)
Step-by-step explanation:
![\text{Use}\\\\a^\frac{m}{n}=\sqrt[n]{a^m}\\\\a^n\cdot a^m=a^{n+m}\\-----------------\\\\length=\sqrt[3]{81}=\sqrt[3]{3^4}=3^\frac{4}{3}\\\\width=3^\frac{2}{3}\\\\\text{The area of a rectangle:}\ A=width\cdot length.\\\text{Substitute:}\\\\A=3^\frac{4}{3}\cdot3^\frac{2}{3}=3^{\frac{4}{3}+\frac{2}{3}}=3^{\frac{4+2}{3}}=3^\frac{6}{3}=3^2=9](https://tex.z-dn.net/?f=%5Ctext%7BUse%7D%5C%5C%5C%5Ca%5E%5Cfrac%7Bm%7D%7Bn%7D%3D%5Csqrt%5Bn%5D%7Ba%5Em%7D%5C%5C%5C%5Ca%5En%5Ccdot%20a%5Em%3Da%5E%7Bn%2Bm%7D%5C%5C-----------------%5C%5C%5C%5Clength%3D%5Csqrt%5B3%5D%7B81%7D%3D%5Csqrt%5B3%5D%7B3%5E4%7D%3D3%5E%5Cfrac%7B4%7D%7B3%7D%5C%5C%5C%5Cwidth%3D3%5E%5Cfrac%7B2%7D%7B3%7D%5C%5C%5C%5C%5Ctext%7BThe%20area%20of%20a%20rectangle%3A%7D%5C%20A%3Dwidth%5Ccdot%20length.%5C%5C%5Ctext%7BSubstitute%3A%7D%5C%5C%5C%5CA%3D3%5E%5Cfrac%7B4%7D%7B3%7D%5Ccdot3%5E%5Cfrac%7B2%7D%7B3%7D%3D3%5E%7B%5Cfrac%7B4%7D%7B3%7D%2B%5Cfrac%7B2%7D%7B3%7D%7D%3D3%5E%7B%5Cfrac%7B4%2B2%7D%7B3%7D%7D%3D3%5E%5Cfrac%7B6%7D%7B3%7D%3D3%5E2%3D9)
Who knows bruh i’m ngl don’t even know the answer i’m just doing this cuz it’s mandatory