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RSB [31]
3 years ago
13

What is the expression for the sum of the first n odd numbers starting 1+3+5+.....

Mathematics
2 answers:
Reptile [31]3 years ago
7 0

Answer:

2n-1

Step-by-step explanation:

labwork [276]3 years ago
6 0

Answer:

(2n-1)

Step-by-step explanation:

The expression will be (2n-1) where n is the index of the odd number you wanna find

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Ali finished his history assignment in 1/4
Lina20 [59]
Hello there!

For this you simply need to give both fractions a common denominator!

The easiest way to do this specific problem would be to make the denominator 12. Why 12? Because 4 x 3 = 12.

So:

1/4 --> ?/12 --> 1 (3) / 12 --> 3/12

2/3 --> ?/12 --> 2 (4) / 12 --> 8/12

Total amount of time means the sum (adding them together).

When adding fractions, you MUST have a common denominator! (Which is what we just did).

So 3/12 + 8/12 = (8+3) / 12 = 11/12 hours

Notice how the denominator stayed the same? When adding/subtracting fractions, the denominator stays the same! :)

Hope this helped!

-------------------------------

DISCLAIMER: I am not a professional tutor or have any professional background in your subject. Please do not copy my work down, as that will only make things harder for you in the long run. Take the time to really understand this, and it'll make future problems easier. I am human, and may make mistakes, despite my best efforts. Again, I possess no professional background in your subject, so anything you do with my help will be your responsibility. Thank you for reading this, and have a wonderful day/night!
4 0
2 years ago
What is the standard form polynomial that represents this product? (-2m^3 + 3m^2 - m)(4m^2 + m - 5)
Svetach [21]

Answer:

-2m^3+12m^2-5

Step-by-step explanation:

if it's wrong I'm sorry

8 0
3 years ago
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If a cold object is in contact with a warm object,in which direction is heat transferred
forsale [732]

Answer:towards the cold object

Step-by-step explanation:

because heat goes from warmer places to cooler places.

8 0
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Which quadrilateral has equal diagonals
Luba_88 [7]

Answer: D

Step-by-step explanation:

All of it’s angles are equal

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The common difference is 1.3
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2 years ago
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