3 years ago

Write -12 as an fraction

Mathematics

2 answers:

Elena-2011 [213]3 years ago

8 0

-12/1 because every whole number has one as its denominator.

Luda [366]3 years ago

4 0

-12/1 because -12/1 doesn't change the answer

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An arithmetic sequence is given below.

Mashcka [7]

Given that $a_1=24$ and $a_2=17$ , if $a_n$ is an arithmetic sequence, then the common difference between successive terms is $d=a_2-a_1=17-24=-7$ .

You then have

$a_2=a_1+d$
$\implies a_3=a_2+d=a_1+2d$
$\implies a_4=a_3+d=a_1+3d$
$\implies \cdots\implies a_n=a_{n-1}+d=\cdots=a_1+(n-1)d$

So the explicit formula for the $n$ th term is

$a_n=24-7(n-1)$