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kaheart [24]
3 years ago
5

Subtract 3x^2 + 8x from -9x^2 +3x -8

Mathematics
1 answer:
Marianna [84]3 years ago
7 0

Answer:

\boxed{ \bold{  \huge  {\boxed{ \sf{ - 12 {x}^{2}  - 5x - 8}}}}}

Step by step explanation

\sf{ - 9 {x}^{2}  + 3x - 8 - (3 {x}^{2}  + 8x)}

When there is a ( - ) in front of an expression in parentheses, change the sign of each term in the expression

\dashrightarrow{ \sf{ - 9 {x}^{2}  + 3x - 8 - 3 {x}^{2}  - 8x}}

Collect like terms

\dashrightarrow{ \sf{ - 9 {x}^{2}  - 3 {x}^{2}  + 3x - 8x - 8}}

\dashrightarrow{ \sf{ - 12 {x}^{2}  - 5x - 8}}

Hope I helped!

Best regards!

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∠E∠E and ∠F∠F are vertical angles with m∠E=9x+12m∠E=9x+12 and m∠F=3x+24m∠F=3x+24 .
Mama L [17]

Since ∠E and ∠F are vertical angles, they are congruent, meaning that m∠E = m∠F

Plugging in the equations that were originally given, we can form the equation 9x + 12 = 3x + 24

Subtract both sides of the equation by 3x

6x + 12 = 24

Subtract 12 from both sides

6x = 12

Divide both sides by 6

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This should be your answer. Have an awesome day! :)

3 0
3 years ago
What is 6 to the second power divided by two times three plus four?
mart [117]
6² ÷ 2 × 3 + 4

=36/2(3)+4

=(18)(3)+4

=54+4

=58


8 0
3 years ago
Hank spend 76% of his monthly salary and saves $270 find his monthly salary
Dimas [21]

Answer:

f $270= the remaining 24% then you want to do 270/24=11.25 Then you want to multiply that by 76 and you will get $855

So $270+$855=24%+76% So his monthly salary was $1,125

If you are still confused do it in reverse! 1,125/100=11.25

11.25•24=270 & 11.25•76=855

270+855=1,125

Step-by-step explanation:

the guy below copied me

4 0
2 years ago
Jordan takes 50% of the cherries from a bowl. Then Mei takes 50% of the remaining cherries. Finally Greg takes 50% of the remain
Lynna [10]
If 3 is 50%

3 x 2 = 6

If 6 is another 50%

6 x 2 = 12

If 12 is another 50%

12 x 2 =24

Therefore there were 24 cherries in the bowl!

8 0
3 years ago
Savings account with 200$ and receive 4% interest for 7 years, how much would be in the account?
Fantom [35]

Answer:

256

Step-by-step explanation:

To calculate these kinds of things, I multiply the principal (200), the interest rate (0.04) and the time (7). This results in 56. However, since the question is how much would be in the account, it would be 200+56 which is 256.

5 0
3 years ago
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