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tatiyna
3 years ago
10

My question is in the picture, someone please answer it!

Mathematics
2 answers:
Yakvenalex [24]3 years ago
8 0

Answer:

too blurry

Step-by-step explanation:

get new phone

joja [24]3 years ago
4 0

Answer:

i dont understand. also you shouldnt put big points because people wil look at that then get ur points

Step-by-step explanation:

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Hello Brainly Teacher Brainly Moderators and trusted helpers!​
tatyana61 [14]

Answer:

  • P(x < 84) = 0.3085 or approximately 31%

============

<em>Hello to you from Brainly team!</em>

<h3>Given</h3>

  • Mean grade μ = 86,
  • Standard deviation σ = 4,
  • Grade limit x = 84.

<h3>To find </h3>

  • Probability of that a randomly selected grade is less than 84 or P(x < 84).

<h3>Solution</h3>

Find z-score using relevant equation:

  • z = (x - μ)/σ

Substitute values and calculate:

  • z = (84 - 86)/4 = - 0.5

Using the z-score table find the corresponding P- value.

  • P(x < 84) = 0.30854 or approximately 31%
4 0
2 years ago
What is the equation of the line, in standard form, that passes through (4, -3) and is parallel to the line whose equation is 4
Dmitry_Shevchenko [17]
   
<span>The equation is:   4x + y + a = 0

Point (4, -3)  </span>⇒  x = 4  and  y = - 3<span>

</span>⇒ 4 · 4 - 3 + a = 0
<span>
16 - 3 +a = 0

13 + a = 0

a = -13

</span>Ansver:   equation is:   4x + y - 13 = <span>0     OR     4x + y = 13
</span>


5 0
3 years ago
Read 2 more answers
Help please i’ll give extra points : )
nalin [4]

Answer:

rub the magnets with a stronger magnet then they would be more magnetized

Explanation: If you rub a magnet with lets say some metal then that metal would be magnetized so if you where to rub those 2 magnets with a stronger magnet those magnetized would be magnetized even more than they already are

8 0
3 years ago
HELP HELP HELP HELP WILL GIVE BRAINLIEST<br><br>4a^2 - b^2 - 2a + b<br>factor
Roman55 [17]

Answer:

4a2−b2−2a+b, there are no factorable rational numbers.

Step-by-step explanation:

4 0
3 years ago
If you get how to do this could you please help me on this question?
anzhelika [568]
Fan is at 75 degree angle
7 0
3 years ago
Read 2 more answers
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