Answer:
To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .
Step-by-step explanation:
Answer: A
Step-by-step explanation: when Constructing a confidence interval, it is important to take note of the margin of error which is given by the formulae below
Margin of error = critical value × σ/√n.
Where n is the sample size.
As we can see that the critical value is a constant and the population standard deviation.
Hence there is an inverse relationship between margin of error and sample size, which implies that a large sample size produces a small margin of error.
If the margin of error is small, it means the sample size will increase the like hood that the sample is a good representation of the population.
In geometry, you must know that any heptagon, whether regular or not,the sum of all its interior angles is 900°. Having 7 sides, there are also 7 interior angles. Let's write down the algebraic equation using x as the unknown angle of the other interior angles.
900 = 135(4) + 3x
Solving for x,
<em>x = 120°</em>
Ok what do you not understand.i help