B) Models the equation, because:
Because y = money earned and x = amount of books she sells
When she sells a copy of each book this can be modeled by "2x"
When ever she sell's books, she get's a $5 tip (not affected by x),
Please vote mine the brainliest answer if I helped!
Answer:
D. Two yards of fabric are used to make five place mats.
Step-by-step explanation:
Given
Required
Select the option that describes the scenario
Options A, B and C do not describe the given scenario.
because they all represent
Analyzing D:
We have the following:
Yards = 2
Place Mats = 5
Compare this ratio with the given scenario, we have:
Answer:
Step-by-step explanation:
Sample variance when large number of samples are drawn we have tend to become a normal distribution.
Variance of the sample is different since variance
Var(x) = E(x^2)-{E(x)}^2
is the formula used for finding the variance of any sample.
But sampling distribution of variance requires repeating this process with the different samples several times.
So option A is not right
B is also not correct, C is wrong
D.The sampling distribution of the mean requires multiple samples to be compared. However, in this situation you are looking for the variance, so finding the sample variance is the same as investigating the sampling distribution of the variance.
is correct
Answer:
x = 5
Step-by-step explanation:
Given
f(x) = - 3x + 21 and f(x) = 6, then equating gives
- 3x + 21 = 6 ( subtract 21 from both sides )
- 3x = - 15 ( divide both sides by - 3 )
x = 5