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snow_lady [41]
2 years ago
14

The nth term of a sequence is given by 2n+1.Write down the first four terms of the sequence.​

Mathematics
1 answer:
ale4655 [162]2 years ago
8 0

Answer:

<em>x, 2x+1, 4x+3, 8x+7</em>

Step-by-step explanation:

If we call the first term <em>x</em>, then the subsequent term is <em>2x+1</em>. Then, the next term is <em>2(2x+1)+1=4x+2+1=4x+3</em>. Then, the fourth term is <em>2(4x+3)+1=8x+6+1=8x+7</em>.

As a matter of fact, the <em>n</em>th term is given by 2^{n-1}x+2^{n-1}-1 for starting term <em>x</em>.

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Svetllana [295]

Answer:

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Step-by-step explanation:

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(Your new equation looks like this by the way).    2A=BH

Since you need to get B by its self, the way to clear the H away from the B is by dividing.  You will now divide the B and H aswell as 2A and H. (It will look like this) \frac{2A}{H} = \frac{BxH}{H} . (Again when you have the same number or letter, you cross it out. When you divide, you won't change anything on the left side, and all you have to do on the right id to cross out the H next to the B and cross out the H on the bottom of the equation). You should be left with \frac{2A}{H} = B. Now you can turn it around for your final answer. B= \frac{2A}{H}.

Please let me know if i helped, how I did, and if you have any questions.

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