Answer: X= -8
1) Move all X’s to left side by subtracting 14x from both sides.
Leaves you with -3x=24.
2) -3x=24 is the same as 3x= -24
3) Divide both sides by 3 to get X= -8
Answer:
The test statistic
Step-by-step explanation:
<u>Explanation</u>:-
Let x₁⁻ be the mean of the sample of size n₁ from a population mean μ₁ and standard deviation 'σ₁
Let x₂⁻ be the mean of the sample of size n₂ from a population mean μ₂ and standard deviation 'σ₂'
Null hypothesis : H0:μ₁ = μ₂
Alternative hypothesis : H1:μ₁ ≠μ₂
To test whether there is any significant difference between x₁⁻ and x₂⁻ we have use test statistic
Here
- x₁⁻ be the mean of the first sample
- x₂⁻ be the mean of the second sample
- 'σ₁' be standard deviation first population.
- 'σ₂' be standard deviation second population.
Answer:
y = 3x -5
Explanation:
Since it's parallel, it will have the same slope: 3.
So you'll have y = 3x + a, and we need to find a.
Plug in the values for the point we are given:
7 = 3(4) + a
7 = 12 + a
a = -5
<h3>So there you have it: y = 3x - 5</h3>