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attashe74 [19]
3 years ago
9

Please help for brainliest

Mathematics
1 answer:
ivolga24 [154]3 years ago
3 0

Answer:

#3

Step-by-step explanation:

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Which property allows you to write the expression<br> (3 +71) + (8 - 61) as (8 - 61) + (3 + 71)?
Masteriza [31]

Answer:

Commutative Property

Step-by-step explanation:

Commutative property is the property where if you change the order of the operands, it does not change the result.

8 0
3 years ago
Write the simplest polynomial function with the given roots 2i, square root of 3, and 4
Volgvan

Answer:

  • y = (x - 4)(x + 2i)(x - 2i)(x + √3)(x - √3) Possible answer
  • y = (x - 4)(x^2 + 4)(x^2 - 3)                    Possible answer

Step-by-step explanation:

The simplest answer is that 2i cannot be a lone root. It must have a twin that is - 2i

√3 has the same sort of rule. It cannot be a root all by itself. It also must have a twin, in this case -√3

So the answer must be

(x - 4)(x + 2i)(x - 2i)(x + √3)(x - √3)      <<< Possible answer

but this can be reduced even further.

  • (x + 2i)(x - 2i) = x^2 - x*2i + x*2i - 4i^2
  • (x + 2i)(x - 2i) = x^2 - 4(i)^2
  • (x + 2i)(x - 2i) = x^2  + 4.               Remember i^2 = - 1

By a similar method (x - √3)(x + √3) = x^2 - 3

So the polynomial is reduced to

(x - 4)(x^2 + 4)(x^2 - 3)  <<<< Answer

If this is not among your answers and the  factored form is not either, please tell me what is.

5 0
3 years ago
How many groups of sixty are in two hundred forty-four
Kamila [148]
You do 244 divide by sixty and your answer is 4.06
7 0
3 years ago
Read 2 more answers
Enter the equivalent distance in km in the box.
devlian [24]
100 cm = 1m

To find 60 000cm, multiply by 600 :
60 000 cm = 600m                

To convert from m to km, divide by 1000 :
600m ÷ 1000 = 0.6km                        
3 0
3 years ago
3a+4b=5a-t solve for a
7nadin3 [17]

Answer:

2b+t/2=a

Step-by-step explanation:

3a + 4b = 5a-t

-3a           -3a

4b = 2a - t

+t         +t

4b + t = 2a

/2           /2

2b+t/2=a

5 0
3 years ago
Read 2 more answers
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