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Salsk061 [2.6K]
3 years ago
5

Help me with number 4 and 5

Mathematics
1 answer:
denpristay [2]3 years ago
7 0
24 and -5 are the answers
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Write the explicit formula for the geometric sequence 2, 8, 32, 128
Alja [10]
The first term, a, is 2.  The common ratio, r, is 4.  Thus,

a_(n+1) = 2(4)^(n).

Check:  What's the first term?  Let n=1.  Then we get 2(4)^1, or 8.  Is that correct?  No.

Try this instead:

a_(n) = a_0*4^(n-1).  Is this correct?    Seeking the first term (n=1), does this formula produce 2?      2*4^0 = 2*1 = 2.  YES.

The desired explicit formula is   a_(n) = a_0*4^(n-1), where n begins at 1.


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3 years ago
Write 3/5 as a percent. Remember it has to be out of 100 so first make an equivalent fraction with 100 as your bottom number and
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60% as 1/5 is 20% so that times by three is 30%
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3 years ago
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What is the difference in the Volume Formula for a prism and a pyramid. *
Tanzania [10]

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How do you do metric Measures ?
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What are u specifically asking
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