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Brut [27]
3 years ago
6

21 = m + 9 m = 11 is it a solution

Mathematics
1 answer:
Zarrin [17]3 years ago
7 0
No because 21=(11)+9
21 can’t equal to 20
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7m-6; m =8<br><br> What’s the answer!??
boyakko [2]

Answer:

m = 8 Please brainliest!

Step-by-step explanation:

Simplifying

7m + -6m = 8

Combine like terms: 7m + -6m = 1m

1m = 8

Solving

1m = 8

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Divide each side by '1'.

m = 8

Simplifying

m = 8

3 0
2 years ago
I am trying to remember how to do Write a two-column proof,
Klio2033 [76]

9514 1404 393

Explanation:

Make use of the properties of equality.

  a = 2b +6 . . . . . given

  a = 9b -8 . . . . . given

  2b +6 = 9b -8 . . . . . . . substitution property of equality

  6 = 7b -8 . . . . . . . . . . . subtraction property of equality

  14 = 7b . . . . . . . . . . . . . addition property of equality

  2 = b . . . . . . . . . . . . . . . division property of equality

  b = 2 . . . . . . . . . . . . . . symmetric property of equality

4 0
3 years ago
No entendi lpM explicen
LuckyWell [14K]
No able engles? Don’t know if i spelt that right but
3 0
3 years ago
Write the quadratic function in standard form.<br> f(x) = -x2 + 2x + 4<br> f(x) =
goldenfox [79]

Answer:

f(x)=-1(x-2)^2+8

Step-by-step explanation:

Given:

The quadratic function is given as:

f(x)=-x^2+2x+4

The standard form of a quadratic function is given as:

f(x)=a(x-h)^2+k, where, 'a', 'h' and 'k' are real numbers.

Now, in order to convert the given function to standard form, we use completing by  square method.

-x^2+2x=-(x^2-2x)=-[(x-2)^2-2^2]=-[(x-2)^2-4]=-(x-2)^2+4

Now, f(x)=-x^2+2x+4 can be rewritten as:

f(x)=-(x-2)^2+4+4\\f(x)=-1(x-2)^2+8

Therefore, the standard form of the function is:

f(x)=-1(x-2)^2+8

7 0
2 years ago
Mrs.Gomez paid $780 for a new backyard fence. A new gate cost and additional $225. The fencing was a total of 120 feet. What was
In-s [12.5K]
I’m not sure what the gate has to do with the problem, but you should just divide 780 by 120 to get 6.5. In other words, each foot costs $6.50.
5 0
3 years ago
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