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2 years ago

What is the value of the 30th term in the following arithmetic sequence? 12, 6, 0, -6, ... HELP!!!!

2 answers:

4 0

30 times by 6 because it goes down by 6 which is 180 and take awat from 12 which is -168
And don't forget that it is a negative. so leave a minus before the number.

satela [25.4K]2 years ago

4 0

The value of the 30th term is <em>-168</em><em />

According to our sequence, we are subtracting 6 every time. If we look at our number line though, we notice that we start 2 terms before we get to zero, so we an multiply our -6 by 28 because when we multiply we start from zero and the term we are wanting, our 30th term, is actually 28 terms away from zero. So:

-6 * 28 = -168

And this is our answer of the 30th term in the arithmetic sequence.

Thank you for your question! I hope this helped! Have an amazing day and feel free to let me know if you have nay further questions! :D

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In a two digit number, t = the tens digit and u = the ones digit. Which of the expressions below shows the value of its reversal

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10u + t is the expressions shows the value of the reversal of digits in a two digit number, t = the tens digit and u = the ones digit. This can be obtained by multiplying 10 with the tens digit and adding unit digit.

<h3>Which is the required expressions?</h3>

Given that, in a two digit number,

t = the tens digit

u = the ones digit

The expression for the digit will be ,

10×t + u = 10t + u

The value of its reversal,

u = the tens digit

t = the ones digit

10×u + t = 10u + t is the required expression

For example,

37 = 10×3 + 7 = 30 + 7 and its reverse 73 = 10×7 + 3 = 70 + 3

Hence 10u + t is the expressions shows the value of the reversal of digits in a two digit number, t = the tens digit and u = the ones digit.

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If data for a time series analysis are collected on an annual basis only, which pattern can be ignored? a. horizontal b. seasona

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