An arithmetic sequence is an ordered list of numbers where the next number is found by adding on to the last number (ex: 2,5,8,11... is a sequence where 3 is added on to find the next number).
The equation for an arithmetic sequence is
is the "n-th" number in the sequence (ex: is the first term in the sequence)
d is the number you add (common difference) to find the next number
The first number in the sequence is 47 so
<span>d=-2 because the question gives you that
</span>
<span>
</span><span>
</span><span>
</span><span>
</span>
The answer is A. -9.
<u> </u>
<span>The answer is C. 158</span>
For the second one, it gives you
and <span>
You can use this to find d
</span><span>
</span><span>
</span><span>
</span><span>
</span><span>
</span><span>
</span>
Now you can just solve using the equation normally.
<span>
</span><span>
</span><span>
</span><span>
</span><span>
</span>
The answer is C. 158
The square root of Pi is approximately 1.77245.
36.64-21=15.64
15.64-6.14=9.5
The answer is she made $9.50 worth in local calls last month
He was 51 years old. He was 33 when he first started exploring. Then 17 years later he explored again so you add 17 +33 =50 . Then 11 years later he died so you add 11 to 50 =51
The first figure has 3 angles, the second one has 4 angles, the third one has 5 angles so the next one will have 6 angles.
The violet figures inside stick with each side of the outer figures in the middle, so the last figure will look more less like in the attachment.