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2 years ago

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:

x, 2x+1, 4x+3, 8x+7

Step-by-step explanation:

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

As a matter of fact, the nth term is given by $2^{n-1}x+2^{n-1}-1$ for starting term x.

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Vadim26 [7]

Answer:7=0.5 |x-4| -3

+3 +3

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3 years ago

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Make X the subject :))

Rom4ik [11]

Answer:

$x = \frac{3 + 8y}{y - 1}$

Step-by-step explanation:

$y = \frac{x + 3 }{x - 8}$

Cross multiply,

y(x - 8) = x +3

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(y - 1)x = 3 +8y

$x = \frac{3 + 8y}{y - 1}$

3 0

3 years ago

What is the value of the rate of change when we put a glass of water at room temperature in the freezer for 15 minutes, what is

alexgriva [62]

Answer:

Step-by-step explanation:

I do not understand your question very well but I think that the state of the glass of the water would be liquid and solid at the same time since the water would not freeze 100% and would be with small pieces of solid and some parts liquid, in terms of temperature, I think that at 5 minutes it would be 5 ° C and at 10 it would be 3-4 ° C the longer it is in the freezer the less its temperature will be

(All of that is my point of view)

Average temperature 30 °

So :

30 ÷ 15 = 2 °

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3 years ago

Use the distributive property to create an equivalent expression to 42+6x

Mademuasel [1]

40+2+1(6+n)
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3 years ago

Amelia, Luis, Shauna, and Clarence used different approaches to solve the inequality 7.2b + 6.5 > 4.8b – 8.1. Amelia started

patriot [66]

Luis’s, because he flipped the inequality sign when he subtracted

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3 years ago

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

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