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Damm [24]
3 years ago
11

Can someone help me ASAP, please and ty! What is “ 3x^2 added to 6x^2” simplifed to?

Mathematics
2 answers:
mr_godi [17]3 years ago
8 0

Answer 9x^2

Step-by-step explanation:

3x^2+6x^2=9x^2

Katena32 [7]3 years ago
7 0

Answer:

9x^2

Step-by-step explanation:

3x^2 + 6x^2

9x^2

You do not multiply exponets, they stay the same.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

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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
What is the probability that when a coin is flipped six times in a row, it lands heads up every time?
Elanso [62]
The possibility is 3 : 1/2 * 6/1 = 3/1
6 0
3 years ago
A runner finished a total of 1,500 kilometers in races before retiring . She finished thirty-two 15-kilometer races . The rest o
Sindrei [870]

Answer:

32*15 = 480

1500-480 = 1020

1020/10

102 races

Step-by-step explanation:

5 0
3 years ago
I’ll mark y brainlist for the correct answer!
inna [77]

Answer:

16 / C

Step-by-step explanation:

-4 x -4 = 16

4 x 4 = 16

two negatives cancel out when multiplying, that is why it equals 16*

5 0
3 years ago
Read 2 more answers
Maria earns $48 every three hours she works. How much will she earn by working 13 hours?
Valentin [98]

Answer:

$624

Step-by-step explanation:

48 x 13

5 0
3 years ago
Read 2 more answers
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