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shusha [124]
3 years ago
5

What would this be please help

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0
28 degrees that would be z
hoa [83]3 years ago
6 0
Z would be 28 degrees
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A manufactured product has a length that is normally distributed with a mean of 12 cm. The product will be unusable if the lengt
Sav [38]

Answer:

a) σ  = 0,1612

b) P [ 11,75 < X < 12,35] = 0,92,44   or    92,44 %

Step-by-step explanation:

NOTE: I assume the unusable length s 11,5 and less

a) For a normal distribution, the probability of P = 0,01 corresponds to z(score) =  -3,1 then:

- 3,1 = ( X - μ₀ ) / σ

- 3,1 = (11,5 - 12 )/ σ

-3,1 = - 0,5 / σ

σ  = 0,1612

b) If σ = 0,1612

P [ 11,75 < X < 12,35]

z₁ (score)  = ( 11,75 - 12 ) / 0,1612

z₁  = - 0,25/ 0,1612

z₁  = -1,55

From z table  P [ 11,75 < X] = 0,0606

z₂ (score) = ( 12,35 - 12) / 0,1612

z₂ = 0,35 / 01612

z₂ = 2,17

From z table  P [ X < 12,35] = 0,9850

Finally P [ 11,75 < X < 12,35] = 0,9850 -  0,0606

P [ 11,75 < X < 12,35] = 0,92,44   or    92,44 %

5 0
3 years ago
What are the perimeter and the area of the square? <br>80<br>200<br>400<br>8√5<br>16√5<br>32√5​
Deffense [45]

Answer:

680

8√5=17.8

16√5=75.7

32√5​=71.5

Step-by-step explanation:

8 0
3 years ago
What is the measure of the indicated arc in radians?
iogann1982 [59]

Answer:

D is the right one

Step-by-step explanation:

π radian = 180 degree

-> 135 degree = \frac{135}{180} π radian

-> 135 degree = 0.75 * π  radians = 3π/4 radian

5 0
3 years ago
Do I divide or multiply not sure
Makovka662 [10]

Answer:

x=40

Step-by-step explanation:

x= 360-(273+47)

5 0
2 years ago
Alejandro is flying a kite, holding his hands a distance of 3.5 feet above the ground
Lemur [1.5K]

Answer: 52.34

Step-by-step explanation: sin23=opposite/hypotenuse=x/125

sin23/1=x/125

125sin23=x

x=48.841391... add 3.5 = 52.341391... round to 52.34

7 0
2 years ago
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