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3 years ago

What is a formula for the nth term of the given sequence? 20,23, 26...

Mathematics

1 answer:

lord [1]3 years ago

6 0

Answer:

17 + 3n

Step-by-step explanation:

20, 23,26 ..............

This is an arithmetic series

First term = a = 20

Common difference = second term - first term

d = 23 - 20 = 3

nth terms = a + (n-1)*d

= 20 + (n -1) *3

= 20 + n*3 - 1*3

= 20 + 3n - 3

= 20 - 3 + 3n

= 17 + 3n

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Which equation represents a proportional relationship?

asambeis [7]

Given:

Four equations in the options.

To find:

The equation which represents a proportional relationship.

Solution:

If y is proportional to x, then

$y\propto x$

$y=kx$

where, k is the constant of proportionality.

In this case if x=0, then y=0. It means the graph of a proportional relationship passes through the origin.

From the given options, only option B, i.e., $y=\dfrac{1}{4}x$ , is of the $y=kx$ , where, $k=\dfrac{1}{4}$ .

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Therefore, the correct option is B.

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3 years ago

I dont want the answer i just need help pls and thank you please view image

Elis [28]

I can help! With the Greatest Common Factor you figure out the greatest number that can go into all numbers. The number here would be the 2. You then divide 2 by all the numbers in the problem.
You would end up getting x^2 + 6x + 9

I use to struggle with this too. Hope this helps! Have a great day!!

6 0

3 years ago

I need help on this one can anybody please tell me. Please and thank you.

docker41 [41]

Do you have 1 7/8 divided by one half. With dividing you multiply by the reciprocal of 1/2 which is 2/1. Before you do that change 1 7/8 into a mixed number which is 15/8. 15 x 2= 30, 8 x 1=8. New fraction is 30/8. Now as a mixed number it is 3 6/8 which simplifies to 3 3/4. So your answer is D

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3 years ago

Every female rabbit has 5 baby rabbits. What is the constant of proportionality for the ratio of baby rabbits to female rabbits?

lora16 [44]

Answer:

B.5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Evaluate.

madreJ [45]

Answer:

Answer is none of these.

Answer is given below with explanations. 

Step-by-step explanation:

Given that x = -2.5

To find the value of x+13

Ob substituting the value in the given equation 

we get 

= -2.5+13

= 13 - 2.5 (we can also write like this)

= 10.5

Therefore value of x +13 is 10.5

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

8 0

3 years ago

What is a formula for the nth term of the given sequence? 20,23, 26...​

What is a formula for the nth term of the given sequence? 20,23, 26...