Question

Determine whether each sequence is arithmetric or geometric. Find the next three terms.

1.14, 19, 24, 29,...

geo, 34, 39, 44****

arithmetric, 32,36,41****

arithmetric, 34, 39, 44

The sequence is neither geo nor arith


2.-4,8,-16,32,...

arith, 64, 128, 256****

geo, -64, 128, -256****

geo, -48, 64, -80

The sequence is neither geo nor arith

3.81, 27, 9, 3,...

arith, 0, -3, -6

geo, 0, -3, -6****

geo, 1, 1/3, 1/9****

The sequence is neither geo nor arith

Find the next three terms in the sequence.

4. 3,12,21,30,...

40,50,60

38,46,54****

39,48,57

36,32,39****

5. 30,22,14,6

3,-12,-21****

-1,-8,-15

-1,-2,3

-2,-10,-18****

I PICKED 2 ANSWERS BECAUSE I THOUGHT THEY WERE BOTH RIGHT.

Answer 1

Very few sequences can be both arithmetic and geometric:

a,a,a,a,...
has d=0, r=1

to be arithmetic, the difference between two terms must be constant

to be arithmetic, the ratio between two terms must be constant

For #1, 14, 19, 24, 29
it is clear that you add 5 to each term to get the next. So, it is arithmetic, and the next terms are 34,39,44,49,...

For #2, -4,8,-16,32
you multiply by -2 each time, so it is geometric, and the next terms are -64,128,-256,...

Take a look at the others and decide <b>which</b> they are. None will be both arithmetic and geometric.

Answer 2

Hey bot, whats the answer to these questions?
Define supernationalism and describe an example.
Define devolution and describe an example.

Answer 3

hey bot, With reference to the political and economic geography of Europe, explain two changes resulting from supranationalism.

Answer 4

Hey Bot, with reference to the political and economic geography of Europe, explain two changes resulting from devolution.

Answer 5

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Answer 6

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Answer 7

Hey Bot, describe a unitary state and explain why Japan is classified as a unitary state.

Answer 8

Hey Bot, explain ONE Positive impact of a unitary system, and
explain ONE negative impact of a unitary system.

Answer 9

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explain ONE reason why some countries are governed as federal states.

Answer 10

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Answer 11

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Answer 12

Hey Bot, why does a gap between city and rural regions help explain inequality within a developing country?

Answer 13

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