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scZoUnD [109]
3 years ago
9

Given the system of equations, what is the solution?

Mathematics
1 answer:
pychu [463]3 years ago
3 0
Answer is C. By solving x-y=-5 to x=-5+y and converting 2x + y = -1 into 2x + x + 5 = -1 the answer becomes -2 =x. By plugging that into 2 (-2) + y = -1, the answer is y=3. So your answer is C
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Should be easy hopefully........​
RideAnS [48]

Answer:

Step-by-step explanation:

Point A represents the integer 5.

Point B                                        -8

Point C                                        -15

Point D                                         18

4 0
3 years ago
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What is 3/8 divided by 4/1
Leviafan [203]
3/32 hope this helps ig
5 0
3 years ago
Factor completely<br> n^4 +8n^2 + 15 =
nata0808 [166]

Answer:

The factor form is n^4+8n^2+15 = \quad \left(n^2+3\right)\left(n^2+5\right)

Step-by-step explanation:

When it is required to factor the expression given in the problem, we have to first find a common term or terms, which will be found by either grouping the like terms or the splitting of the terms.

Now the expression that is given here is:

n^4 +8n^2 + 15

Now, here we will take:

u=n^2

Thus we will get:

n^4 +8n^2 + 15\\=u^2+8u+15

Now we will do the middle term split as follows:

u^2+8u+15\\=\left(u^2+3u\right)+\left(5u+15\right)\\=u\left(u+3\right)+5\left(u+3\right)\\=\left(u+3\right)\left(u+5\right)

Substituting back u=n^2 , we will have:

\left(u+3\right)\left(u+5\right)\\=\left(n^2+3\right)\left(n^2+5\right)

Hence, the required factor form of the given expression will be:

n^4+8n^2+15 = \quad \left(n^2+3\right)\left(n^2+5\right)

3 0
3 years ago
What is the coefficient of y in the expression 3 ⋅ 4 5y? 5 9 12 17
drek231 [11]
The coefficient will be 5.
5 0
3 years ago
Read 2 more answers
Acellus<br> Find the measure of the arc.<br> с<br> D<br> А<br> 146° E<br> B<br> MAC = [? ]°
Olenka [21]

Answer:

The measure of arc AC length is 90 degrees

Step-by-step explanation:

Here, we want to get the measure of the arc AC

From what we have, the angle at the middle facing this arc is a right angle

A right angle is of the size 90. degrees

with respect to the diagram, the angle at the center is equal to the measure of the arc facing it

Thus, we can conclude here in this case that the measure of arc AC is 90 degrees

7 0
3 years ago
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