Answer:
C) 18
Step-by-step explanation:
In order to get the answer to this word problem you have to mentally image in your head looking at a coordinate graph. You see the point (2, -3) which is on the x or y axis. You see the point (5, 0) which is also on the x or y axis. When those two points or coordinates cross, they get the number 18.
Answer:
(5,-1)
Step-by-step explanation:
4x+3y=17
3x+2y=13
So elimination sounds fun but we will have to do manipulation:
Multiply top equation by 2 and bottom equation by 3. This will cause the second term in both by 6y which means we would be setup for elimination.
8x+6y=34
9x+6y=39
--------------------now subtract the equations
-x+0=-5
So x=5
Now plug it into either question (no matter which-pick and choose)
I will go with the second original 3x+2y=13
So if x=5 we have 15+2y=13
Subtract 15 on both sides: 2y=-2
Now divide both sides by 2: y=-1
Answer (5,-1)
Using the Central Limit Theorem, it is found the correct option regarding why the large-sample confidence interval for these data.
c. Because there are only 6 skaters in one group having wrist injuries.
<h3>What does the Central Limit Theorem state?</h3>
It states that for a proportion p in a sample of size n, the sampling distribution of sample proportion is approximately normal with mean 
and standard deviation 
, as long as 
and 
, that is, as long as there are at least 10 successes and at least 10 failures in the sample.
In this problem, for the sample of people wearing wrist guards, only 6 had injuries, hence the large-sample confidence interval should not be used and option C is correct.
To learn more about the Central Limit Theorem, you can check brainly.com/question/24663213
Answer:
7 minutes
Step-by-step explanation:
7/10 of an hour is 42 minutes. If you divide the total time by the number of tasks you get 7.
