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Crazy boy [7]
3 years ago
5

What is the sum of the first five terms of a geometric series with A1 equals 20 and R equals 1/4

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0
Sum = 20(1-(1/4)^5) / (1-1/4) = 26.64
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Kamil and Sean share some money in the ratio 3:5. Sean gets $56 more than Kamil. How much do they get each?
liq [111]
Let Kamil get x. Therefore Sean would get (x + 56).

Kamil and Sean are in the ratio:        3:5

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3 0
3 years ago
Help me please asap!!!!!!
meriva

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What you do is the FOIL process.

F=First. The first thing that you do is times 4a and a together to get 4a^2.

O=Outer. You multiply the outer numbers 4a and -5b together to get -20ab.

I=Inner. You multiply the inner numbers b and a together to get ab.

L=Last. You multiply the last numbers b and -5b together to get -5b^2.

Put it all together to get 4a^2-19ab-5b^2 as your answer.

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