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serious [3.7K]
3 years ago
6

The graph of the function is shown. Which inequality represents the domain of the function?

Mathematics
1 answer:
Yuri [45]3 years ago
8 0

Answer:

x≥-6

Step-by-step explanation:

The domain is every value of x.  Since the function does not include any values of x less than -6, x≥-6 is the domain.

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Determine the values of a for which the following system of linear equations has no solutions, a unique solution, or infinitely
navik [9.2K]

Answer:

Never

Never

Never

Step-by-step explanation:

The equations given are

2x1−6x2−4x3 = 6 ....... (1)

−x1+ax2+4x3 = −1 ........(2)

2x1−5x2−2x3 = 9 ..........(3)

the values of a for which the system of linear equations has no solutions

Let first add equation 1 and 2. Also equation 2 and 3. This will result to

X1 + (a X2 - 6X2) - 0 = 5

And

X1 + (aX2-5X2) + 2X3 = 8

Since X2 and X3 can't be cancelled out, we conclude that the value of a is never.

a unique solution,

Let first add equation 1 and 2. Also equation 2 and 3. This will result to

X1 + (a X2 - 6X2) - 0 = 5

And

X1 + (aX2-5X2) + 2X3 = 8

The value of a = never

infinitely many solutions. 

Divide equation 1 by 2 we will get

X1 - 3X2 - 2X3 =3

Add the above equation with equation 3. This will result to

3X1 - 8X2 - 4X3 = 12

Everything ought to be the same. Since they're not.

Value of a = never.

4 0
3 years ago
(-12 + 9zy) - (x² + 6xy-8y^2)
svetlana [45]

Answer:−x2−6xy+8y2+9yz−12

3 0
3 years ago
Simplify:<br> 4(2a+3)+5(a+3)
EleoNora [17]

Answer:

13a+27

Step-by-step explanation:

8a+12+5a+15= 13a+27

5 0
3 years ago
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Hey guys can you please help me with this math problem?
shusha [124]

Answer:

77777777

Step-by-step explanation:

5 0
3 years ago
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Find the variance for the given sample data, Round your answer to one more decimal place than the original data 7 725 1 A. 11.8
VladimirAG [237]

Answer:

D. 7.7

Step-by-step explanation:

7.725, 2 does not round up so its left to 7.7

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3 years ago
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