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iragen [17]
3 years ago
12

Please help!!! I just need a simple explanation I will mark brainliest!

Mathematics
1 answer:
aniked [119]3 years ago
6 0

Answer:

I have made it in above figure so each angle will 150 degree

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Suppose you work in the quality assurance department of a chemical processing plant and it is your responsibility to ascertain w
aleksandrvk [35]

Answer:

48.668 ≤ μ ≤ 63.332

Step-by-step explanation:

Given the data:

Sample (X) : 71, 45, 54, 75, 50, 49, 63, 55, 48, 50

Number of samples (n) = 10

α = 95% = 0.05

Determine the range within which the true mean of the fluid samples from the day shift will be with a 95% confidence

True mean = μ

Confidence interval :

m ± t(α/2 ; df) * s/√n

m - t(α/2 ; df) * s/√n ≤ μ ≤ m + t(α/2 ; df) * s/√n

m = sample mean ; s = sample standard deviation ; df = degree of freedom =(n - 1) = (10 - 1) = 9

Calculating the sample mean and standard deviation using calculator to save computation time :

71, 45, 54, 75, 50, 49, 63, 55, 48, 50

m = 56 ; s = 10.25

m - t(0.05/2 ; 9) * s/√n ≤ μ ≤ m + t(0.05/2 ; df) * s/√n

From t table : t(0.05/2 ; 9) = t(0.025, 9) = 2.262

56-2.262 * (10.25/√10) ≤ μ ≤ 56+2.262 * (10.25/√10)

48.668 ≤ μ ≤ 63.332

6 0
3 years ago
WILL MARK BRAINIEST IF RIGHT
4vir4ik [10]

Answer:

The answer is A

5 0
2 years ago
Read 2 more answers
Help me please:<br> 3/4 - 7/9 + 2/3 =
mojhsa [17]

Answer:

3/4-7/9+2/3=0.63

Step-by-step explanation:

.........

8 0
3 years ago
Read 2 more answers
Find the center and radius of each.
Marysya12 [62]
<span>x^2+y^2=49
</span>
Radius 7
Center (0,0)

<span>x^2+y^2=324
</span>
Radius 18
Center (0,0)

<span>x^2+(y+2)^2=121

Radius 11
Center (0, -2)
</span><span>
(x+10)^2+(y+9)^2=8
</span>
Radius 2√2≈2.82843
Center (-10, -9)

7 0
3 years ago
Uhh I need help, yes ik I’m dumb
Soloha48 [4]

Answer:

1\frac{7}{9}

Step-by-step explanation:

1\frac{1}{3} is the same as 4/3 so you'd be multiplying 4/3 x 4/3 so you multiply straight across to get 16/9 when you simplify you are left with 1 7/9

Hope that helps and have a great day!

8 0
3 years ago
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