the error is that they didnt add the exponets
Assuming, it's decimal logarithm.
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![\log\sqrt{30}-\log\sqrt6+\log\sqrt2=\log\dfrac{\sqrt{30}\cdot\sqrt2}{\sqrt6}=\log \sqrt{10}=\dfrac{1}{2}\log 10=\dfrac{1}{2}\cdot 1=\dfrac{1}{2}](https://tex.z-dn.net/?f=%20%5Clog%5Csqrt%7B30%7D-%5Clog%5Csqrt6%2B%5Clog%5Csqrt2%3D%5Clog%5Cdfrac%7B%5Csqrt%7B30%7D%5Ccdot%5Csqrt2%7D%7B%5Csqrt6%7D%3D%5Clog%20%5Csqrt%7B10%7D%3D%5Cdfrac%7B1%7D%7B2%7D%5Clog%2010%3D%5Cdfrac%7B1%7D%7B2%7D%5Ccdot%201%3D%5Cdfrac%7B1%7D%7B2%7D%20%20)
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Answer: 25.12 ft
To find the circumference of a circle, multiply the diameter with π (pi)
Formula: 2πr (2 × radius) (π = 3.14)
In the problem...
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We can multiply 3.14 by 8 to get the circumference.
3.14 × 8 = 25.12
Hence, 25.12 is the answer, but we can do it another way.
Let me know if you have any questions.
~ Lily, from Brainly.
<em>Note to asker: Hi there, make sure to write down these formulas!</em>
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<em>Circumference: 2πr</em>
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<em>Area: πr²</em>
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<em>Radius: </em>
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<em>Diameter: radius × 2</em>
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<em>Have a good day!</em>