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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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Answer: AA similarity theorem.

Step-by-step explanation:

Given : AB ∥ DE

Prove: ΔACB ≈ ΔDCE

We are given AB ∥ DE. Because the lines are parallel and segment CB crosses both lines, we can consider segment CB a transversal of the parallel lines. Angles CED and CBA are corresponding angles of transversal CB and are therefore congruent, so ∠CED ≅ ∠CBA.

Also ∠C ≅ ∠C using the reflexive property.

Therefore by AA similarity theorem , ΔACB ≈ ΔDCE

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4 years ago
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8 0
3 years ago
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What is 9x-5x ????i need help
Dima020 [189]

Hi there!

Answer:

<u><em>=4x</em></u>

Step-by-step explanation:

Distributive property: ⇒ a(b+c)=ab+ac

You had to add similar elements.

9x-5x=4x

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Have a great day!

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Y = 4x + 13<br> is this a function
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Answer:

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Step-by-step explanation:

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