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dmitriy555 [2]
3 years ago
6

I'll give brainliest to correct answer.

Mathematics
1 answer:
Bogdan [553]3 years ago
5 0

Answer:

C

Step-by-step explanation:

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In a manufacturing process, a machine produces bolts that have an average length of 5 inches with a variance of .08. If we rando
xz_007 [3.2K]

Answer:

\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})

And replacing:

\mu_{\bar X}= 5

And the deviation:

\sigma_{\bar X}= \frac{0.283}{\sqrt{5}}= 0.126

And the distribution is given:

\bar X \sim N(\mu= 0.08, \sigma= 0.126)

Step-by-step explanation:

For this case we have the following info given :

\mu= 5. \sigma^2 =0.08

And the deviation would be \sigma = \sqrt{0.08}= 0.283

For this case we select a sample size of n = 5 and the distirbution for the sample mean would be:

\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})

And replacing:

\mu_{\bar X}= 5

And the deviation:

\sigma_{\bar X}= \frac{0.283}{\sqrt{5}}= 0.126

And the distribution is given:

\bar X \sim N(\mu= 0.08, \sigma= 0.126)

4 0
3 years ago
Shane biked 1 mile than three times the number of miles lissette bike a total of 7 miles. Write an equation to determine how man
bagirrra123 [75]

Answer:

Equation : x + 1 + 3x = 7

Miles Lissette biked : 3/2 miles

Step-by-step explanation:

<em>Step 1: Determine the total number of miles biked.</em>

From my understanding. 7 miles is the total number of miles biked by both.

<em>Step 2: Assume the values</em>

Miles Lissette biked = x

Miles Shane biked = 1 + 3x

<em>Step 3: Add miles biked by Lissette and Shane which will be equal to total miles. </em>

Equation for miles Lissette biked: x + 1 + 3x = 7

4x + 1 = 7

x = 6/4

<em>Step 4: Simplify</em>

x = 6/4

x = 3/2

Therefore, the equation for miles Lissette biked is x + 1 + 3x = 7 and Lissete biked for 3/2 miles.

!!

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=A%28x%29%3D3%5E2" id="TexFormula1" title="A(x)=3^2" alt="A(x)=3^2" align="absmiddle" class="la
kogti [31]
It is good equation. Look, that:
81 = 3 x 3 x 3 x 3 = 3^4.
So you have to solve:
3^x = 3^4 
exponents have to be the same, so
x=4
That's mean that A(4) = 81

5 0
2 years ago
Read 2 more answers
A bag contains 4 white, 3 black, and 6 green balls. Balls are picked at random. Explain why the events picking a white ball and
Fofino [41]

Answer: D


Step-by-step explanation:

D is the correct answer because first of all, there are 13 balls total. So the denominator would have to be 13. Also, white is the second largest number of balls in the set, so it is pretty likely that you will pick it. Although the most common picked would be green since it has the most balls.

4 0
3 years ago
Read 2 more answers
M is proportional to the cube of r. when r=3m,m=216.when r=5 find the value of m
klio [65]

Answer:

The value of m is 1000 for r=5

Step-by-step explanation:

Given that m is proportional to the cube of r

It can be written as:

m \propto\ r^3

When the proportionality symbol is removed a proportionality constant is introduced in the equation.

Let k be the proportionality constant

m = kr^3

Given

r=3,m=216

Putting the values

216 = k(3)^3\\216 = k * 27\\k = \frac{216}{27}\\k = 8

The equation will now become

m = 8r^3

Putting r = 5

m = 8(5)^3\\m = 8 * 125\\m = 1000

Hence,

The value of m is 1000 for r=5

7 0
3 years ago
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