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Olenka [21]
3 years ago
9

I don’t understanddddd

Mathematics
2 answers:
faust18 [17]3 years ago
7 0

Answer

45

Step-by-step explanation:

Brums [2.3K]3 years ago
7 0

Answer:

x/-3=-15

Step-by-step explanation:

x=-15×-3

x=45

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Write the Quotient for the following 5 1/3 ÷2​
d1i1m1o1n [39]

Answer:

34

Step-by-step explanation:

51/3/2=51x2/3=102/3=34

3 0
3 years ago
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What are the solutions to the following system of equations? Select the correct answer. y=x^2-4x+8 4x+y=12
lorasvet [3.4K]
Y=x^2-4x+8 and 4x+y=12 so y=12-4x, insert y in the quadratic to get
12-4x=x^2-4x+8
12=x^2+8
0=x^2-4=(x-2)(x+2)
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7 0
3 years ago
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Voltage sags and swells. Refer to the Electrical Engineering (Vol. 95, 2013) study of transformer voltage sags and swells, Exerc
Artist 52 [7]

Answer:

a. z-score for the number of sags for this transformer is  ≈ 1.57 . The number of sags found in this transformer is within the highest 6% of the number of sags found in the transformers.  

b. z-score for the number of swells for this transformer is ≈ -3.36. The number of swells found in the transformer is extremely low and within the lowest 1%

Step-by-step explanation:

z score of sags and swells of a randomly selected transformer can be calculated using the equation

z=\frac{X-M}{s} where

  • X is the number of sags/swells found
  • M is the mean number of sags/swells
  • s is the standard deviation

z-score for the number of sags for this transformer is:

z=\frac{400-353}{30} ≈ 1.57

the number of sags found in the transformer is within the highest 6% of the number of sags found in the transformers.  

z-score for the number of swells for this transformer is:

z=\frac{100-184}{25} ≈ -3.36

the number of swells found in the transformer is extremely low and within the lowest 1%

5 0
3 years ago
How to convert a fraction to the simplest term
Leto [7]

Okay so take 12/20 for example 12 is divisible by 4 now check if 20 is divisible by 4 so that would be 3/5

Hope that this helped you (;

6 0
3 years ago
Rewrite 7^4 as a product of repeated factors
alexdok [17]

Answer:

7 times 7 times 7 times 7= 2401

Step-by-step explanation:

I think thats what its asking

4 0
3 years ago
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