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Lapatulllka [165]
3 years ago
15

One half the sum of a number z and 3 1/2 is 4 1/2

Mathematics
1 answer:
solong [7]3 years ago
3 0
4 1/2(2)=9. Multiply by 2 to get total
9- 3 1/2=z. Subtract 3 1/2 from total to get Z
5 1/2= Z
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In the geometric sequence below, what is the common ratio?<br><br> Sequence: 64,16,4,1
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The common ratio is the ratio of successive terms:

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The common ratio is 1/4.

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Step-by-step explanation:

there are 2 similar triangles : ABE and DCE

that means they have the same angles, and the scaling factor from one triangle to the other is the same for every side.

and that means that

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we know that

AE = AD + DE

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a.

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8 0
1 year ago
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