First, we are going to find the common ratio of our geometric sequence using the formula:

. For our sequence, we can infer that

and

. So lets replace those values in our formula:


Now that we have the common ratio, lets find the explicit formula of our sequence. To do that we are going to use the formula:

. We know that

; we also know for our previous calculation that

. So lets replace those values in our formula:

Finally, to find the 9th therm in our sequence, we just need to replace

with 9 in our explicit formula:



We can conclude that the 9th term in our geometric sequence is <span>
1,562,500</span>
Answer:
1543 miles
Step-by-step explanation:
629 + 215 + 111 + 588 = 1543
Answer:
Step-by-step explanation:
If W is between X and Y, this means that W is the midpoint of X and Y. The expression XW+WY = XY is therefore true.
Given WX = 6n - 10, XY = 17, and WY = 3n, substituting the given functions into the formula;
6n-10+3n = 17
9n-10 = 17
add 10 to both sides
9n-10+10 = 17+10
9n = 27
divide both sides by 9
9n/9 = 27/9
n = 3
Since WX = 6n-10
substitute n = 3 into the function
WX = 6(3)-10
WX = 18-10
WX = 8
<em>Hence n = 3 and WX = 8</em>
ANSWER: No.
Explanation: It is impossible for a negative number to be greater than a positive number. All negatives are behind zero, therefore less than zero, on the number line, while all the positives are ahead of zero, meaning they're greater than zero. In conclusion, a negative number is ALWAYS less than a positive number.
<span>1 : 2 = 4 : 8
</span><span><span>• </span>Product of the means:
2 × 4 = 8
</span><span><span>• </span>Product of the extrems:
1 × 8 = 8
So the answer is 8.
I hope this helps. =)
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