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Varvara68 [4.7K]
3 years ago
13

so i tried this the first time and got it wrong and now im on my last attempt and im even more confused. Please help and explain

in detail! I cant learn anything if you just tell me the answer without going in detail and breaking down the problem.

Mathematics
1 answer:
lozanna [386]3 years ago
5 0

Answer:

I think 55 is the answer

Step-by-step explanation:

6x - 5 (x = 10)

=6(10) - 5

=60 - 5

=55

In algebra if a variable is right beside a number then the number is multiplied by the variable for example 6x - 5, in this case x = 10 so 6 x 10 = 60. Then the next part is subtraction so

60 - 5 = 55. Therefore 55 is the answer.

(I haven't done this in a very long time so I might be wrong, sorry)

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Two terms of a geometric sequence are given. Find the first five terms. Please help asap
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Answer:

4, 8, 16, 32, 64

Step-by-step explanation:

The nth term of a geometric sequence is

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Given

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Divide (2) by (1)

\frac{a_{1}r^{9}  }{a_{1}r^{6}  } = \frac{2048}{256}

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Substitute r = 2 into (1)

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Then

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a₂ = 2a₁ = 2 × 4 = 8

a₃ = 2a₂ = 2 × 8 = 16

a₄ = 2a₃ = 2 × 16 = 32

a₅ = 2a₄ = 2 × 32 = 64

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