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mixas84 [53]
3 years ago
5

Reflection across y = x what does this mean

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0
Rule= (x,y) is now (y,x) so coordinates of (5,4) now would be (4,5). this is the rule for y=x problems so you take the coordinates and flip them for every point. 
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A boxcar contains six complex electronic systems. Two of the six are to be randomly selected for thorough testing and then class
zlopas [31]

Answer:

Step-by-step explanation:

Number of electronic systems = 6

(a) Number of defected systems = 2

Probability of getting at least one system is defective

1 defective and 1 non defective + 2 defective

= (2 C 1 ) x (4 C 1) + (2 C 2) / (6 C 2)

= 3 / 5

(b) four defective

Probability of getting at least one system is defective

2 defective and 2 non defective + 3 defective and 1 non defective + 4 defective  

= (4 C 2 ) x (2 C 2) + (4 C 3 )(2 C 1) + (4 C 4) / (6 C 4)

= 1

4 0
3 years ago
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2x-4y=-6<br> 3x+3y=4<br><br> solve matrice
natita [175]
2x-4y=-6...........................
6 0
4 years ago
Sketch a graph of the relation y+4=2(x-3)
Aleks04 [339]

Answer:

I graphed it for you. Is this what you were looking for?

6 0
3 years ago
What value of x makes the equation true? 4x - 3= -9 + 7x
uysha [10]

Answer:

x = 2

Step-by-step explanation:

To find the x-value that makes the equation true, we would have to solve for x in the equation. To do that, we would have to get the equation in the form x = _. That would be our answer.

4x - 3 = -9 + 7x

Add 9 to both sides to get rid of the -9 on the right side.

4x - 3 + 9 = 7x

Simplify.

4x + 6 = 7x

Subtract 4x from both sides to get rid of the 4x on the left side.

6 = 7x - 4x

Simplify.

6 = 3x

3x = 6

Divide both sides by 3 to get rid of the coefficient of 3 on the left side.

x = 6/3

Simplify.

x = 2

So, the x-value that makes the equation true would be 2.

I hope this helps. :)

4 0
4 years ago
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Sally has saved 41 quarters from washing cars. How many cents does Sally have ?
choli [55]

Answer:

Sally has $10.25 or 1,025 pennies

Step-by-step explanation:

6 0
3 years ago
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