3 years ago

Surface area I need help with this

Mathematics

1 answer:

Stolb23 [73]3 years ago

6 0

It seems to be the answer would be see

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Consider the recursive formula an = (2 + an-1) / 2

wel

Answer: The correct option is B. The third term is 4.

Explanation:

The given recursive formula is,

$a_n=\frac{2+a_{n-1}}{2}$

It is given that the first term is 10. So,

$a_1=10$

To find third term, first we have to find the second term.

$a_2=\frac{2+a_{2-1}}{2}$

$a_2=\frac{2+a_{1}}{2}$

$a_2=\frac{2+10}{2}$

$a_2=\frac{12}{2}$

$a_2=6$

Therefore the second term is 6.

$a_3=\frac{2+a_{3-1}}{2}$

$a_3=\frac{2+a_{2}}{2}$

$a_3=\frac{2+6}{2}$

$a_3=\frac{8}{2}$

$a_3=4$

Therefore, the correct option is B. The third term is 4.

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A rectangular prism-shaped fish tank is 14 inches tall. The base of the tank has a length of 36

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Step-by-step explanation:

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3 years ago

What kind of sequence is this? 143, 125, 107, 89, ...

podryga [215]

Hello from MrBillDoesMath!

Answer: It is part of an arithmetic progression

Discussion:

143 - 125 = 18

125 - 107 = 18

107 - 89 = 18

The value 18 is subtracted from each term in the arithmetic sequence.

Regards, MrB

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The ratio of boys to girls in school is 8:10. There are 520 boys. How many girls are there?<br>

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Answer:

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