1..... 8(x+6)=-64
8x+48 =-64
8x =-64-48
8x=-112
X=-112/8
x=-14....
2.....3(4-2y)=-15
12-6y=-15
-6y=-15-12
-6y = - 27
y=27/6
y=4½....
3.....8w-3w+6=41
5w=41-6
5w=35
W=35/5
w=7....
4.....9x+3+x=-77
10x=-77-3
10x=-80
x=-8...
5.....10(-x-2)=120
-10x-20=120
-10x=120+20
-10x=140
x=140/-10
x=-14...
You shouldn't have a problem with the rest now....
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Answer:
The combined mean can be calculated by plugging in our numbers into the formula given: [(57*82)+(23*63)/(57+23)]=76.5
Answer:
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 64
Sample mean = 22.3
Sample standard deviation = 8.8
We want to estimate 92% confidence interval.
92% Confidence interval:
Putting the values, we get,
Degree of freedom = n - 1 = 63
Hello there!
First of all, find the slope of the right side of the graph. The slope is 2. So far we have:
y=2
Now look at the x coordinate of the point. Now we have:
y=2|x-0|
y=2|x|
Next the graph is shifted down 2 so add a negative two.
y=2|x|-2
I hope this helps!
Best wishes.
-HuronGirl
