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3 years ago

Explicit equation for 5,10,20,40

Mathematics

1 answer:

eduard3 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

These are the terms of a geometric sequence with n th term

$a_{n}$ = a $(r)^{n-1}$

Where a is the first term and r the common ratio

r = $\frac{10}{5}$ = $\frac{20}{10}$ = $\frac{40}{20}$ = 2

and a = 5, hence explicit equation is

$a_{n}$ = 5 $(2)^{n-1}$

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2 years ago

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Answer:

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To find the solution to the equation, we have to rearrange the equation to make $x$ the subject:

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