Much as you would like it to be D, it isn't. D has its center at (3,4). You must change the sign on both numbers inside the brackets.
You need something that looks like (x + 3)^2 + (y + 4)^2. So it could be A or B. How do you know which? The graph should give you an answer, then we'll talk about it. The red circle is A the blue circle is B. Which one is correct?
The answer to that is that the center is 5 units away from the origin. The radius of this circle is the sqrt(25) = 5 units away from the center. The blue one has a radius of sqrt(5) which is something over 2. It is not enough. So what's the answer?
Answer:
-42
Step-by-step explanation:
7 x -6 = 42
Answer:
The teacher select a sample of n =15 students. And he wanted to know if teaching a smaller class was more effective and students performed better, that means if 
and he obtaind a sample mean of 
.
Based on this the correct system of hypothesis are:
Null hypothesis: 
Alternative hypothesis:
And the best option for this case is:
a. H0:
vs. H1:
.
Step-by-step explanation:
For this case we have the following previous info given:
represent the true mean
represent the true deviation
The teacher select a sample of n =15 students. And he wanted to know if teaching a smaller class was more effective and students performed better, that means if and he obtaind a sample mean of .
Based on this the correct system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
And the best option for this case is:
a. H0: vs. H1: .
63+74+x=180
180-63-74=43
x=43
Answer: <span>$200</span>.
Any firm (regardless of market structure) will maximize profit by producing and selling the quantity at which marginal revenue is equal to marginal cost.In the special case of a perfectly competitive firm,marginal revenue is equal to price.
