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2 years ago

Write down in terms of n, an expression for the nth term

Mathematics

1 answer:

Scilla [17]2 years ago

3 0

Answer:

${ \bf{(a).}} \\ { \tt{ {n}^{th} = a + (n - 1)d }} \\ { \tt{ {n}^{th} = 6 + (n - 1) \times - 4 }} \\ {n}^{th} = 10 - 4n \\ \\ { \bf{(b).}} \\ { \tt{ {n}^{th} = - 8 + (n- 1) \times - 7 }} \\ { \tt{ {n}^{th} = -1 - 7n}}$

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Find the distance between two points -9,-5 and 0,7

Arada [10]

To find the distance, you need to subtract the second point from the first one. So:

0 - (-9) = 9 ( two minuses turn into a positive)

And

7 - (-5) = 12

So the difference between the points is 9 units on the x- axis and 12 on the y-axis.

Hope this helped and pls mark as brainliest!

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3 years ago

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Im doing this problem where I have to deal with fractions that have variables in them. here is the problem. I linked the picture

AVprozaik [17]

First you should combine n/6-5n/12
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then you should cross multiply -3n/12 by 1/16
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3 years ago

I need help solving this, it has 2 parts.

Ratling [72]

Answer:

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3 years ago

16, 4,1,... Find the 6th term

Vlada [557]

Let's see what to do...

_________________________________

Step (1)

Look : 16 , 10 , 4 , ...

It is an arithmetic sequence.

So first we have to find the value of the ratio(( d )) .

To do this, we need to subtract each sentence minus the previous sentence.

So we have : 10 - 16 = - 6

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Step (2)

To find the nth sentence in an arithmetic sequence, we must use the following equation :

$t(n) = t(1) + (n - 1)d$

_________________________________

Step (3)

To find the 6th term just need to put the following parameters in the above sequence.

t(1) = 16 ------ n = 6 ------ d = -6

$t(6) = 16 + (6 - 1)( - 6)$

$t(6) = 16 + (5)( - 6)$

$t(6) = 16 + ( - 30)$

$t(6) = 16 - 30$

$t(6) = - 14$

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And we're done.

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3 years ago

PLEASE ANSWER ASAP WILL GIVE BRAINLIST!!!!!!!!!!!!!!!!!!!!!!!!!! -3/4 * f = 5/4

timurjin [86]

Answer:

X= -5/3

Step-by-step explanation:

I am sure that this answer is correct I have used an Algebra calculator against my work and I have gotten this answer both times. Please mark Brainliest.

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3 years ago

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