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Alex_Xolod [135]
3 years ago
14

HELP ME PLEASE WITH 1,2 AND 3 PLEASE DON'T TAKE LONG TO RESPOND !!​

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
6 0

Answer:

1. -19x

3. 23 -  8x

5. -18x + 2y

Step-by-step explanation:

first: 3x - x = 2x

2x - 22x = -20x

-20x + x = -19x

second one:

8 - (-15) = 23

12x - 20x = -8 x

23 - 8x

third:

-10x - 8x = -18x

3y - y = 2y

-18x + 2y

erastova [34]3 years ago
6 0

Answer:

1. -19x

2. 8x-7

3. -18x+2y

Step-by-step explanation:

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An online movie streaming plan charges an annual fee of $60 plus $2.50 per
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1st plan: 24 movies 2nd plan: 10

Step-by-step explanation:

if the 2nd plan has to be the exact value of the 1st plan you would have to divide 6.25 from 62.50.

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3 years ago
What are the new coordinates of the figure above if it is dilated by a scale factor of , with the origin as the center of dilati
Reika [66]

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7 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
Are corresponding sides and angles equal
andrezito [222]
Yes they are equivalent
8 0
3 years ago
△​MNO​ and △​PQR​ are similar. The ratio of a side of △​PQR​ to a corresponding side of △​MNO​ is 4 : 3. If ​MN ​= 12 in., ​NO​
KonstantinChe [14]
Solve for x
4      12
--- =  ---      4x=36  36/4=9  x=9 = PQ=9in
3       x
4      18
--- =  ---       4x=54    54/4=13.5  x=13.5 QR=13.5in
3       x
4      24
--- =  ---       4x=72     72/4=18  x=18   PR=18in
3       x

18+13.5+9 = 40.5
Therefore, the perimeter of ΔPQR = 40.5inches
5 0
3 years ago
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