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mestny [16]
3 years ago
13

How to write the question using the follow sentence Will mark Brainliest

Mathematics
2 answers:
poizon [28]3 years ago
7 0
Answering so the guy above me will get the brainiest lol
Svetlanka [38]3 years ago
6 0

Answer:

3(x+2) - 5

Step-by-step explanation:

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Normal with a mean of 70 minutes and a standard deviation of 10 minutes. Using the 68-95-99.7 rule, what percentage of students
lys-0071 [83]
Note that 60=70-10\times1, i.e. a student that completes the exam in one hour falls exactly one standard deviation (in the negative direction) from the mean.

Now, you're looking for the proportion of students that fall below this, i.e. \mathbb P(Z. The empirical rule states that approximately 68% of a normal distribution falls within one standard deviation of the mean. That is,

\mathbb P(|Z|

This means that the proportion of students that fall outside this range is

\mathbb P(|Z|>1)=\mathbb P(Z1)=1-\mathbb P(|Z|

Because the distribution is symmetric, it follows that

\mathbb P(Z1)=\dfrac{0.32}2=0.16

This means the percentage of students that complete the exam in under an hour is 16%.
4 0
3 years ago
Marcia began finding the volume of the box. Her work is shown below.
bulgar [2K]

Answer:140 C

Step-by-step explanation:

7 0
3 years ago
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For the equation - 3x + 2 = 8 and the inequality
Anarel [89]

Answer:

x= -2; x ≥ 2

Step-by-step explanation:

1. -3x+2=8

<u>Subtract +2 </u>on both sides

-3x+2<u>-2</u>=8<u>-2</u>

<u></u>

-3x=6     <u>Divide by -3 </u>on both sides

-<u>3x</u>/-3=6/<u>-3</u>

<u></u>

<u>x= -2 </u>

<u>-</u><u>2 is the answer for both the equation and inequality.</u>

<u />

<u>sorry i was lazy to do the inequality one, but it should be the same answer.</u>

<u />

<u>also ignore the fact that theres a line, i could not find the sign without one, o im sorry.</u>

<u></u>

<u></u>

8 0
3 years ago
The first five terms in a pattern are shown below.
Olin [163]

Answer:

-45 because it is the nth term in the sequence just trust me.. ;)  Please vote Brainliest!

Step-by-step explanation:

4 0
4 years ago
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(Will give Brainliest, these are angle relationships) Please help, and show work, what relationship is it and set up an equation
Vanyuwa [196]

Answer:

Supplementary, 39+5x=180, x=28.2

Step-by-step explanation:

So we know that a straight line is 180 degrees, therefore 52+(5x-13) must equal 180. This is a supplementary relationship. That's our equation, now we just have to solve.

52+5x-13=180

We can straight away combine numbers, giving us

39+5x=180

Now we subtract 39 from both sides, giving us

5x=141.

Now we will answer.

141/5=28.2=x

I'm not sure if this is right, but this is my answer :)

4 0
3 years ago
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