Which of the following systems are using logarithms? An inclinometer - used to measure angles of elevation and depression The Richter Scale - used to measure an earthquake's magnitude A ruler - used to measure various objects A microscope - used to measure small objects The Decibel Scale – used to measure the sound level A thermometer - used to measure temperature Photograph F-stops – used to measure the aperture setting on a lens The Cosmic Distance Scale – used to measure the distance of objects in space.

Q: Express the following as the logarithm of a single quantity. log 74 + log 716 Choose the correct…

A: The given logarthim expression,   log745+log716

Q: A formula for calculating the magnitude of an earthquake is M=23log(EE0) that uses the common (base…

A: Consider the formula for calculating the magnitude of an earthquake is M=23log(EE0), As the…

Q: Evaluate the logarithm without the use of a calculator. log9 si

A:

Q: An earthquake was recorded with an intensity which was 630,957 times more powerful than a reference…

A: Given that I=630957×I0

Q: sound just below the threshold of hearing, which is approximately 10 16 watt per square centimeter.…

A: Since L = 10 log(I/I0) Now given I = 72000 I0

Q: Given log A=3.227 and log,B=0.201, evaluate log AB. A. 3.026 OB. 16.055 O C. 0.649 OD. 3.428

A: The objective of this question is to find the value of log AB given the values of log A and log B.

Q: Question 2 of 18, Step 1 of 1 Correct The acidity of a water-based solution is defined as pH =…

A: Logarithm of a number is defined as a quantity representing the power to which a fixed number which…

Q: A formula for calculating the magnitude of an earthquake is M=2/3log(E/E0) that uses the common…

A: Given the formulae for the calculation of magnitude of an earth quake that is M=(2/3)log(E/E0). If…

Q: With a logarithmic scale on the horizontal axis of a scatter plot, a one unit move to the left could…

A: Answer: The answer is given below:

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.