We read your photo as:

Evaluate 3/(0.534) using logarithms.

Mathematics

ScanSolve AI Answer

This answer stops before the end.

It was cut off when it was first written. Ask ScanSolve this question again for the full working.

Step 1: Let the given expression be PP.

P=45.3×0.006970.5343P = \sqrt[3]{\frac{45.3 \times 0.00697}{0.534}}

We can write this as:

P=(45.3×0.006970.534)13P = \left(\frac{45.3 \times 0.00697}{0.534}\right)^{\frac{1}{3}}

Step 2: Take the logarithm of both sides.

log⁡P=log⁡((45.3×0.006970.534)13)\log P = \log \left(\left(\frac{45.3 \times 0.00697}{0.534}\right)^{\frac{1}{3}}\right)

Using the logarithm property log⁡(ab)=blog⁡a\log(a^b) = b \log a:

log⁡P=13log⁡(45.3×0.006970.534)\log P = \frac{1}{3} \log \left(\frac{45.3 \times 0.00697}{0.534}\right)

Using the logarithm properties log⁡(ab)=log⁡a−log⁡b\log\left(\frac{a}{b}\right) = \log a - \log b and log⁡(ab)=log⁡a+log⁡b\log(ab) = \log a + \log b:

log⁡P=13[log⁡(45.3)+log⁡(0.00697)−log⁡(0.534)]\log P = \frac{1}{3} \left[ \log(45.3) + \log(0.00697) - \log(0.534) \right]

Step 3: Find the logarithms of each number using a 4-figure logarithm table.

  • For log⁡(45.3)\log(45.3): Characteristic: There are 2 digits before the decimal point, so the characteristic is 2−1=12-1=1. Mantissa: From log tables, the mantissa for 453 is 0.6561. So, log⁡(45.3)=1.6561\log(45.3) = 1.6561.

  • For log⁡(0.00697)\log(0.00697): Characteristic: The first non-zero digit (6) is in the third decimal place, so the characteristic is 3ˉ\bar{3} (or -3). Mantissa: From log tables, the mantissa for 697 is 0.8432. So, log⁡(0.00697)=3ˉ.8432\log(0.00697) = \bar{3}.8432.

  • For log⁡(0.534)\log(0.534): Characteristic: The first non-zero digit (5) is in the first decimal place, so the characteristic is 1ˉ\bar{1} (or -1). Mantissa: From log tables, the mantissa for 534 is 0.7275. So, log⁡(0.534)=1ˉ.7275\log(0.534) = \bar{1}.7275.

Step 4: Substitute these values into the equation for log⁡P\log P and perform the arithmetic.
First, calculate the sum of the logarithms in the numerator:

Was this helpful?

Still stuck on this one?

Ask a follow-up, and the answer starts from this question.

Got a different question?Ask your own question
Handwritten step-by-step solution preview

Handwritten Step-by-Step Solution

Get this as a handwritten image on WhatsApp — like a tutor wrote it for you.

Try on WhatsApp