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Can anyone please help me answer this question?

For each geometric sequence (), find the missing value
1 = −
3
2
, = −2, 7 =?
2 = 6, 7 = 192, 11 =?

1 Answer

5 votes

Answer: For the first geometric sequence, the missing value is:

1 = -3/2, -2 = 7

To find the missing value, we can use the formula:

an = ar^(n-1)

Where a1 is the first term, r is the common ratio, and n is the term number.

So we know that:

a1 = 1, r = -3/2, n = 3

Plugging these values into the formula:

an = ar^(n-1)

an = 1 * (-3/2)^(3-1) = 1 * (-3/2)^2 = 1 * 9/4 = 9/4

So the missing value is 9/4.

For the second geometric sequence, the missing value is:

2 = 6, 7 = 192

To find the missing value, we can use the formula:

an = ar^(n-1)

Where a1 is the first term, r is the common ratio, and n is the term number.

So we know that:

a1 = 2, r = 7/6, n = 11

Plugging these values into the formula:

an = ar^(n-1)

an = 2 * (7/6)^(11-1) = 2 * (7/6)^10 = 2 * (7/6)^10 = 2 * 7^10 / 6^10 = 9261

So the missing value is 9261.

Explanation:

User Pancakeo
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