Answer: -3.0593
Step-by-step explanation:
The test statistic for the difference between two population mean (when population standard deviations 
are known ) is given by :-
where ,
= Sample sizes taken from two populations 1 and 2.
= Difference between two Sample mean.
= Standard deviations of populations 1 and 2.
As per given , we have
We assume that the data follows a normal distribution.
Then, the test statistic will be :-
Hence, the test statistic= -3.0593
The ratio of green bars to red bars is 44:33 which simplified is 4:3.
We can set up an equation to find number of red bars:
Since the ratio stays the same, # of green bars / # of red bars = 4/3,
so 200200/x = 4/3 where x = # of red bars.
Now solve for x:
200200/x = 4/3
(cross multiply)
200200*3 = 4*x
600600 = 4x
600600/4 = x
x = 150150
There 150150 red bars if there are 200200 green bars.
Hope this answers your question!
Answer:
Answers are below.
Step-by-step explanation:
Problem 2:
Area = approx. 11.3 (rounded to nearest tenth)
A = 1 / 4b 
1/4 x 4 x 
11.31371
11.31371 rounded to the nearest tenth is 11.3
Problem 3: i'm not too sure sorry :(
Answer:
r = 33
s = 18
Step-by-step explanation:
Given expression is 
.
Multiply numerator and denominator with the conjugate of (4 - √3).
= 
= 
= 
= 
= 
Now compare this expression with 
r = 33
s = 18
<span>x=y^2+6y+1 what is the vertex form of the equation?
x=(y+3)^2 -8 hope this helped</span>
