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lawyer [7]
3 years ago
10

R=x²/y x=3.8×10^5 y=5.9×10^4 work out the value of R in standard form.

Mathematics
1 answer:
dmitriy555 [2]3 years ago
8 0

Answer:

R=\frac{14440000}{5.9}

Step-by-step explanation:

R=\frac{x^2}{y}

x=3.8 \cdot 10^5

y=5.9\cdot 10^4

R=\frac{(3.8\cdot10^5)^2}{5.9\cdot10^4}

=\frac{2^{10}\cdot \:5^{10}\cdot \:3.8^2}{2^4\cdot \:5^4\cdot \:5.9}

R=\frac{2^6\cdot \:5^6\cdot \:3.8^2}{5.9}

R=\frac{14440000}{5.9}

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I'm really not sure how to go about solving this algebraic equation, please help! .513 = (2x)^2 / (.05-x)
LiRa [457]
Let's set it up like this:
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Multiply both sides by 0.05-x
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x=-\frac{0.513+\sqrt{0.673569}}{8},\:x=\frac{\sqrt{0.673569}-0.513}{8}
The variable x can be both positive or negative.
We have found successfully our answer.

Let me know if you have any questions regarding this problem!
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Step-by-step explanation:

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