3 years ago

For the arthritic sequence 5,9,13,17,21,... how many terms would you need to get to 129

Mathematics

1 answer:

Vlad1618 [11]3 years ago

8 0

9514 1404 393

Answer:

Step-by-step explanation:

The first term is 5 and the common difference is 9-5=4, so the n-th term is ...

an = a1 +d(n -1)

an = 5 +4(n -1) = 4n +1

Then the term number for the term 129 is ...

129 = 4n +1 . . . . . put the given value in the formula

128 = 4n . . . . . . . subtract 1

32 = n . . . . . . . . . .divide by 4

The 32nd term is 129.

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12³.2².4⁴ / 4³.2.12²

Nuetrik [128]

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and
$\frac{x^m}{x^n}=x^{m-n}$

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8 0

3 years ago

Read 2 more answers

Consider the equation x +1 = 2.

kiruha [24]

Answer:

x^2 + 2x +1 = 2x + 2

Step-by-step explanation:

(x+1) = 2

multiplying both sides by x +1

(x +1) (x+1) = 2 (x+1)

x^2 + 2x +1 = 2x + 2