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Olegator [25]
3 years ago
7

Solve the following system.

Mathematics
2 answers:
Ilya [14]3 years ago
6 0
The answer is 3,6 this was easy
rusak2 [61]3 years ago
4 0
Y = x + 3 . . . (1)
4x + y = 18 . . . (2)

Putting (1) into (2) gives
4x + x + 3 = 18
5x = 18 - 3 = 15
x = 15/5 = 3
x = 3
y = x + 3 = 3 + 3 = 6

Solution = (3, 6)
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What is a word phrase for 7C - 3
kogti [31]
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3 years ago
Please help. Look at screenshot
Citrus2011 [14]

Answer:

a.

<u>Increasing:</u>

x < 0

x > 2

<u>Decreasing:</u>

0 < x < 2

b.

-1 < x < 2

x > 2

c.

x < -1

Step-by-step explanation:

a.

Function is increasing when it is going up as we go rightward

Function is decreasing when it is going down as we go rightward

We can see that as we move up (from negative infinity) until x = 0, the function is increasing. Also, as we go right from x = 2 towards positive infinity, the function is going up (increasing).

So,

<u>Increasing:</u>

x < 0

x > 2

The function is going down, or decreasing, at the in-between points of increasing, that is from 0 to 2, so that would be:

<u>Decreasing:</u>

0 < x < 2

b.

When we want where the function is greater than 0, we basically want the intervals at which the function is ABOVE the x-axis [ f(x) > 0 ].

Looking at the graph, it is

from -1 to 2 (x axis)

and 2 to positive infinity

We can write:

-1 < x < 2

x > 2

c.

Now we want when the function is less than 0, that is basically saying when the function is BELOW the x-axis.

This will be the other intervals than the ones we mentioned above in part (b).

Looking at the graph, we see that the graph is below the x-axis when it is less than -1, so we can write:

x < -1

4 0
4 years ago
Which of the following is not a solution of 10 &gt; x – 7y?
ASHA 777 [7]
D.
10>(12)-7(0)

10>12.... False
7 0
3 years ago
Are the expressions 5 to the second power and 2 to the fifth power equivalent explain how u know
Anna71 [15]

five to the second power is 5x5 which is 25.

two to the fifth power is 2x2x2x2x2 which is 32.


8 0
3 years ago
Read 2 more answers
Write the equation in slope intercept form ?
QveST [7]

Answer:

The answer is B.

Step-by-step explanation:

6 0
3 years ago
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