Answer:
They all have a solution of 3.
Step-by-step explanation:
Each of the equations represented are basically the same thing, therefore have the same answer.
A) 2r = 6 - You would divide 6 by 2 and you would get 3.
B) 6 = 2r - You would still divide 6 by 2, which equals 3.
C) 2r = 6 - Then again you would divide 6 by 2 to get 3.
- <em>I hope this helps :)</em>
Answer:
(-4,-2)
Step-by-step explanation:
first u should chose a variable to eliminate and i choose Y
y=5/2x+8-y=-1/4x-3
get a common denominator
5/2= 10/4
-1/4=-1/4
the equation i will change a little because we are subtracting
10/4x+8+1/4x+3
11/4x+11
solve for the remaining variable which is X
subtract 11 on both sides
0-11=11/4x+11-11
-11=11/4x
multiply both sides by 4/11
-11 times 4/11= 11/4x times 4/11
x=-4
then substitute the variable in one of the equations and i choose y=5/2x+8
5/2(-4)+8= y
-20/2+8= y
-10+8=y
y=-2
Answer:
4 is in the ones places, so it should be added to the 3 in the ones place, not the 3 in the tenths place.
Step-by-step explanation:
3.3+4=<u>7.3</u>, not 3.7
Answer:
97.8
Step-by-step explanation:
All you need to do is times the percentage with the number(make sure to change the percent to a decimal)
104 x 0.94 = 97.76
97.8
Using the Central Limit Theorem, it is found that the standard deviation is of 0.0971.
<h3>What does the Central Limit Theorem states?</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 
.
- It also states that when two variables are subtracted, the standard deviation is the square root of the sum of the variances.
In this problem, for each sample, the standard error is given by:
Hence, for the distribution of differences, it is given by:
More can be learned about the Central Limit Theorem at brainly.com/question/24663213
