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Nikitich [7]
3 years ago
5

WILLING TO HELP SOMEONE OUT?? GOOD AT ALGEBRA 2?? THEN COME TO THIS QUESTION AND ANSWER IT!! ALL HELP IS APPRECIATED.

Mathematics
2 answers:
Anna71 [15]3 years ago
8 0
A = m^2 - 9m
B = 1 - 9m^2

2A - B
2(m^2 - 9m) - 1 - 9m^2
2m^2 - 18m - 1 - 9m^2
Combine liked terms
-7m^2 - 18m - 1

Answer:
-7m^2 - 18m - 1

(Hopefully this is what you’re asking for)
jarptica [38.1K]3 years ago
5 0
Wouldnt it be -7m^2-18-1
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What t chart matches the equation y=x^2-2
blondinia [14]
The answer is y=xz-2
8 0
3 years ago
Please help me, i will give brainliest!! help me please
Minchanka [31]

The answers are :

10) 25 : 24

11) 24 : 5

12) 36 : 5

13) 7 : 3

14) 15 : 1

<u>Ratio = Number of event 1 : Number of event 2</u> (in same unit, if necessary)

<u>10</u>

Girls preferring orange juice : Boys preferring orange juice

50 : 48 (Divide by 2 on both sides)

25 : 24

<u>11</u>

Boys preferring orange juice : Boys preferring grapefruit juice

48 : 10 (Divide by 2 on both sides)

24 : 5

Remember :

  • <u>1 minute = 60 seconds</u>
  • <u>1 week = 7 days</u>
  • <u>1 hour = 60 minutes</u>

<u />

<u>12</u>

3 minutes : 25 seconds

3 × 60 : 25 (Divide by 5 on both sides)

3 × 12 : 5

36 : 5

<u>13</u>

2 weeks : 6 days

2 × 7 : 6 (Divide by 2 on both sides)

7 : 3

<u>14</u>

5 hours : 20 minutes

5 × 60 : 20 (Divide by 20 on both sides)

5 × 3 : 1

15 : 1

4 0
2 years ago
X - (6.9) = 42.8<br><br> x = 42.8 +
Harman [31]
I hope this helps you



x=42.8+6.9



x=49.7
4 0
3 years ago
Read 2 more answers
Please help!! what is the length of the line
UkoKoshka [18]

Answer:

\sqrt136 (option D)

<h3>Step-by-step explanation:</h3>

6 0
3 years ago
What are the steps of factoring (5m-2)^2-(3m-4)^2 ?
Svetlanka [38]
We use the formula a^2 - b^2 = ( a - b )( a + b );
We have a = 5m - 2 and b = 3m - 4;
<span>(5m-2)^2-(3m-4)^2 = (5m - 2 -3m + 4) x (5m-2 + 3m - 4) = (2m + 2)(8m - 6) = 2(m +1) x 2(4m - 3) = 4(m+1)(4m-3);

</span>
6 0
3 years ago
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