Check the forward differences of the sequence.
If , then let be the sequence of first-order differences of . That is, for n ≥ 1,
so that .
Let be the sequence of differences of ,
and we see that this is a constant sequence, . In other words, is an arithmetic sequence with common difference between terms of 2. That is,
and we can solve for in terms of :
and so on down to
We solve for in the same way.
Then
and so on down to
Answer:The answer for number 3 is 240
Step-by-step explanation:
Answer:
A. Kayla
Step-by-step explanation:
To find the difference between the two numbers we will do:
7°C - (-5°C)
Subtracting a negative number is the same as simply adding, so we can rewrite the equation as:
7°C + 5°C = 12°C
Answer:
Yes
Step-by-step explanation:
Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8. and that is something Very similar.
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$21.21 × 6 = $127.26
$127.26 ÷ 7 = $18.18 cost of 1 pillow at Jenson's.
You multiply the cost of the pillow at Harrison's, $21.21, by the amount of pillows you can buy at Harrison's, 6.
Then divide the answer by the amount of pillows you can buy at Jenson's, 7. The final answer is the cost of 1 pillow at Jenson's.