Answer:
2
Step-by-step explanation:
substitute n=1 and n=3 in the given equation
1 st term is (1)^2-1-2 = 1 -1 -2 = -2
3rd term is (3)^2-3-2 = 9-3-2=4
sum of 1st and 3rd term is -2 + 4 = 2
Use substitution.
2p + 3(2p) = 680
2p + 6p = 680
8p = 680
p = 85
Plug in.
x = 2p
x = 2(85)
x = 170
p = 85
Variance is the standard deviation squared but we're not going to use that now. Let's first calculate the mean:
mean = (17+13+13+22+11+20)/6 = 16.
Now for each value, let's see how far it is from this mean. We'll square these distances and average them. That's our variance.
17 distance 1 squared = 1
13 distance 3 squared = 9
13 distance 3 squared = 9
22 distance 6 squared = 36
11 distance 5 squared = 25
20 distance 4 squared = 16
Now average these outcomes:
variance = (1+9+9+36+25+16)/6 = 16.
So the variance by coincidence is the same as the mean.
Answer C is your answer.
First divide -12 and 6
you should get -2.
now add that to 2.
-2 + 2 is 0
Answer:
g=676
Step-by-step explanation:
g/13=52
We simplify the equation to the form, which is simple to understand
g/13=52
Simplifying:
+ 0.0769230769231g=52
We move all terms containing g to the left and all other terms to the right.
+ 0.0769230769231g=+52
We simplify left and right side of the equation.
+ 0.0769230769231g=+52
We divide both sides of the equation by 0.0769230769231 to get g.
