Answer: 3z+6
Step-by-step explanation:
(3) (z+2)
(3) (z)+(3) (2)
3z+6
Answer:
25.1327412287
Step-by-step explanation:
Answer:
Mean = 30.68
Standard deviation = 6.095
Two standard deviations above the mean = 42.87
Step-by-step explanation:
Given the following data :
21; 21; 22; 23; 24; 24; 25; 25; 28; 29; 29; 31; 32; 33; 33; 34; 35; 36; 36; 36; 36; 38; 38; 38; 40
Mean = Σ(x) / n
n = 25
Σ (X) = 767
Mean (m) = 767 / 25
Mean (m) = 30.68
Standard deviation : sqrt[Σ(x - m) / n]
Using a calculator :
Standard deviation = 6.095 ( 2 decimal places)
2 standard deviations above the mean :
Mean + 2(standard deviation)
Mean + 2(6.095)
30.68 + 12.19
30.68 + 12.19
= 42.87
When you are hiking along a trail, you will be taking some turns and not all direction will going up, some will be even horizontal. The distance you will travel will be the total length you walked along the trail. The displacement is the just distance between your starting point and where your final destination is.
It’s basically asking us to figure out how many one halves are in the equation.
There are 9, 1/2’s in the equation, since 3/2 + 3/2 + 3/2 = 9/2.
So you would put 9 in the box, since you’re multiplying the numerator.
Hope this helps!
