<h3>
Answer: 2*2*2*2*5</h3>
We have four copies of '2' and one copy of '5' multiplied together
This is the same as saying 2^4*5
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Explanation:
Divide 80 over the smallest prime factor, which is 2
80/2 = 40
Divide that result over 2
40/2 = 20
Keep going until you cannot divide by 2 anymore
20/2 = 10
10/2 = 5
We stop here because 5/2 isn't a whole number. We also stop here since 5 is prime. Circle all the primes that show up and you should have four copies of 2 and one copy of 5.
Therefore: 2*2*2*2*5 = 80
In shorthand, this condenses to 2^4*5 = 80
The factor tree is shown below. Other factor trees are possible.
Answer:
perimeter: 36
area: i dont know sorry
Step-by-step explanation:
Answer:
(A) Mean = 84
(B) Variance = 118.714
(C) Standard deviation = 10.89
Step-by-step explanation:
Data provided:
number of observations, n = 15
sample of 15 costco customer satisfaction scores follow
X
![(X-\bar{X})^2](https://tex.z-dn.net/?f=%28X-%5Cbar%7BX%7D%29%5E2)
95 11 121
90 6 36
83 -1 1
64 -20 400
95 11 121
98 14 196
80 -4 16
83 -1 1
82 -2 4
93 9 81
86 2 4
80 -4 16
94 10 100
75 -9 81
62 -22 484
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∑X = 1260 ∑= 1662
Now,
(A) Mean = ![\frac{\textup{Sum of all observations}}{\textup{Total number of observations}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctextup%7BSum%20of%20all%20observations%7D%7D%7B%5Ctextup%7BTotal%20number%20of%20observations%7D%7D)
or
Mean =
= 84
(B) Variance = ![\frac{\sum(X-\bar{X})^2}{n-1}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csum%28X-%5Cbar%7BX%7D%29%5E2%7D%7Bn-1%7D)
or
Variance = ![\frac{1662}{15-1}](https://tex.z-dn.net/?f=%5Cfrac%7B1662%7D%7B15-1%7D)
or
Variance = 118.714
(C) Standard deviation = √Variance = √118.714 = 10.89
$540
6% = .06
“of” = multiply
so 6% of 9000 can be written as .06 x 9000 , which is 540
Brainliests me