Helppp!! 21 - 3y = -18 3x+ y = -5
2 answers:
Answer:
(-3,4)
Step-by-step explanation:
A system of equations is given to us. The given equations are ,
We need to plot the graph and find the solution of the given system . For that refer to attachment . The point at which both the lines of the graph will intersect each other will be the solution of the given system of equations .
From the graph we can see that it intersect at (-3,4) . Therefore the Solution is ,
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Answer: Third option.
Step-by-step explanation:
By definition, Rational Functions have the following form:
Where and
are polynomials.
The Restrictions of the Domain of Rational Functions are those Real numbers that make the denominator equal to zero, because the division by zero is not defined.
In this case, you have the following Rational Function:
The Restrictions of the Domain can be found applying this steps:
- Make the denominator equal to 0:
- Solve for "x":
Then, the Domain of this function includes all "x" not equal to 2.
Therefore, the answer is:
Using the mean concept, it is found that:
1. The mean change in the forecasted high temperatures is of -0.33ºC.
2. The mean change in the forecasted low temperatures is of 0.5ºC.
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The mean of data-set is given by the <u>sum of all observations divided by the number of observations.</u>
Item 1:
The changes in the high temperature are: 2, 1, -1, -1, -1, -2
Thus:
The mean change in the forecasted high temperatures is of -0.33ºC.
Item 2:
The changes in the low temperature are: 2, -2, 2, 1, 0, 0.
The mean change in the forecasted low temperatures is of 0.5ºC.
A similar problem is given at brainly.com/question/24754716