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Alenkasestr [34]
2 years ago
15

Describe a situation in which the rate of change for data over a short period of time would be a good estimate for the rate of c

hange over a longer period of time.
Write 2 - 4 sentences describing this situation and the patterns you would expect to find in the data.

Include your reasoning on why this situation is a good indicator for the rate of change over a longer period of time.

Write 2 - 4 sentences describing a factor that might impact the rate of change so that it is no longer a good indicator of the rate of change in future observations.

Include your predictions about the effects of the factor on the rate of change.

Mathematics
1 answer:
aalyn [17]2 years ago
5 0

Answer:

will you let me off the hook because of my cute pika pfp?

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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
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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.

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