Answer:
900
Step-by-step explanation:
You would substitute n for 3 so it would be 60x3=180 then multiply that by 2 = 360. Then take the 180 and multiply that by -3 to get -540. Finally do 360 - (-540) into a calculator to get 900.
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The answer is —>14x-2
2(4x+3)+2(3x-2)
=14x-2
Answer:
1: 
2: 
Step-by-step explanation:
2:
Hopes this helps
Answer:
Mean = 0.4
Stand deviation = 0.08944
Step-by-step explanation:
1.
This question tells us that the mean of trapped moths is only 0.4
Therefore the mean = E(X) = 0.4
2.
The standard deviation of the sample mean is
= σ/√n
σ = 0.6
n = 45
When we put these values into the formula we will have:
0.6/√45
= 0.6/6.708
= 0.08944
So in conclusion, the mean is 0.4 and the standard deviation is 0.08944.
Thank you!
Answer:
a=-30
Step-by-step explanation:
