The number of circles at Stage 10 is extremely large.

Stage

Number of Circles (Kiran)

2

4

8

Number of Circles (Jada)

1

2

2

Number of Circles (Noah)

2 ^ 1

2 ^ 2

2-2

3

4

5

10

2 ^ 3

16

2 ^ 4

32

2 ^ 5

1024

2 ^ 10

Write an expression to represent this number.

1 answer

To find the total number of circles at Stage 10 for Kiran, Jada, and Noah, we can analyze the patterns in their numbers.

Kiran's Number of Circles:

From the data, we have:

  • Stage 2: 4 circles
  • Stage 3: 8 circles

It looks like Kiran's number of circles is doubling each stage starting from Stage 3. Therefore, we can express Kiran's circles as:

  • Kiran's circles at Stage \( n \) (for \( n \geq 3 \)): \[ K(n) = 2^{n + 1} \]

Jada's Number of Circles:

From the data, we have:

  • Stage 2: 1 circle
  • Stage 3: 2 circles
  • Stage 4: 2 circles From the data, it suggests that after stage 3, Jada has a fixed number of circles (2). Hence we can represent it as:
  • Jada's circles at Stage \( n \): \[ J(n) = \begin{cases} 1 & \text{if } n = 2 \ 2 & \text{if } n \geq 3 \end{cases} \]

Noah's Number of Circles:

From the data, we have:

  • Stage 2: \( 2^1 \) (which is 2)
  • Stage 3: \( 2^2 \) (which is 4)
  • Stage 4: \( 2^3 \) (which is 8)
  • Stage 5: \( 2^4 \) (which is 16)
  • Stage 10: \( 2^{10} \) (which is 1024)

So, Noah's circles at stage \( n \) can be expressed as:

  • Noah's circles at Stage \( n \): \[ N(n) = 2^{n - 1} \]

Total Number of Circles at Stage 10:

Now, to express the total number of circles at Stage 10, we can use:

  • \( K(10) = 2^{10 + 1} = 2048 \)
  • \( J(10) = 2 \)
  • \( N(10) = 2^{10 - 1} = 2^9 = 512 \)

Finally, the total number of circles at Stage 10 is given by: \[ \text{Total Circles}(10) = K(10) + J(10) + N(10) \] \[ \text{Total Circles}(10) = 2048 + 2 + 512 = 2562 \]

Thus, the total number of circles at Stage 10 is 2562.