Distributive property!
2 * 4x = 8x
2 * 9 = 18
8x - 9
3 * 7 = 21
3 * x = 3x
8x - 9 + 21 - 3x
5x + 12
I hope this helped! So sorry if it’s incorrect
Answer:
2/4
Step-by-step explanation:
I believe the answer would be: x=30
Answer:
See below
Step-by-step explanation:
Given there are 56 M&M's:
- Expected Value of Blue = 56(0.24) = 13.44
- Expected Value of Brown = 56(0.14) = 7.84
- Expected Value of Green = 56(0.16) = 8.96
- Expected Value of Orange = 56(0.20) = 11.20
- Expected Value of Red = 56(0.13) = 7.28
- Expected Value of Yellow = 56(0.14) = 7.84
Remember to use
to calculate expected value! This will especially be helpful if you are conducting a chi-squared test of independence.
Answer:
95% Confidence interval: (0.375,0.377)
Step-by-step explanation:
We are given the following in the question:
Sample mean,
= 0.376 cc/cubic meter
Sample size, n = 15
Alpha, α = 0.05
Sample standard deviation, s = 0.0012
Degree of freedom =

95% Confidence interval:
Putting the values, we get,
(0.375,0.377) is the required 95% confidence interval for the population mean potassium chloride concentration.