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stealth61 [152]
3 years ago
10

Are 9(4-x) and 36+9x equivalent expressions

Mathematics
2 answers:
LekaFEV [45]3 years ago
7 0

Answer:

No, they are not equal expressions

Step-by-step explanation:

9(4-x)

Expanding the algebra

9(4)- 9(x)

36-9x is different from 36+9x because it has different signs.

An example is, let's assume x is 2, we would see that it won't give the same answer. If x is 2, then

36-9(2)

36-18=18

36+9(2)

36+18= 54

18 is not equal to 54

36-9x is not also equal to 36+9x

lubasha [3.4K]3 years ago
4 0

Answer:

No.

Step-by-step explanation:

If you simplify the first problem, ( 9(4-x)) It would equal 36-9x. While they may be close one has an addition sign and the other has a minus sign.

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Evaluate the expression 5 x (8 + 6 - 2).
LekaFEV [45]

Answer:

60x

Step-by-step explanation: this would be applying the distributive property

40x+30x-10x

70x-10x

hoped this helped

8 0
3 years ago
Read 2 more answers
Select the correct answer.
swat32

Answer:

C

Step-by-step explanation:

325,000 x 0.8 = 260.400

7 0
4 years ago
Find the given higher-order derivative.<br><br> f''(x) = 9- 3/x<br><br> f'''(x)=
Genrish500 [490]

Answer:

f'''(x)=\frac{3}{x^{2}}

Step-by-step explanation:

We are given with Second-order derivative of function f(x).

f''(x)=9-\frac{3}{x}

We need to find Third-order derivative of the function f(x).

f''(x)=9-\frac{3}{x}=9-3x^{-1}

We know that,

f'''(x) = (f''(x))'

So,

f'''(x)=\frac{\mathrm{d}\,f''(x)}{\mathrm{d} x}

f'''(x)=\frac{\mathrm{d}\,(9-3x^{-1})}{\mathrm{d} x}

f'''(x)=\frac{\mathrm{d}\,9}{\mathrm{d} x}-\frac{\mathrm{d}\,3x^{-1}}{\mathrm{d} x}

f'''(x)=0-3\frac{\mathrm{d}\,x^{-1}}{\mathrm{d} x}

f'''(x)=-3(-1)x^{-1-1}

f'''(x)=3x^{-2}

f'''(x)=\frac{3}{x^{2}}

Therefore, f'''(x)=\frac{3}{x^{2}}

4 0
4 years ago
Write a verbal expression for 2(n + 9)
strojnjashka [21]

Answer:

Two times the sum of a number and nine.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the solution of x+8=13
arsen [322]

Answer:

  • x = 5.

Step-by-step explanation:

  • x + 8 = 13
  • 5 + 8 = 13
  • x = 5

Nothing else to say lol.

8 0
3 years ago
Read 2 more answers
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