Exam 4: The Laws of Exponents and Logarithms: Measuring the Universe

Simplify the expression. Express your answer using only positive exponents.

Use scientific notation to perform each computation. Write your answers in scientific notation.

Simplify the expression.

Solve for x: Round the answer to 4 decimal places.

Perform the conversion given that there are $\pi$ /180 radians in 1 degree. Convert radians to degrees. Give an exact answer.

Simplify the expression. Express your answer using only positive exponents.

Use scientific notation to perform each computation. Write your answers in scientific notation.

Perform the conversion given 1 ounce = 28.35 grams. Convert 147.7 g to oz If necessary, round the answer to 6 decimal places.

Write 84 as a power of 10. Round your answer to 2 decimal places.

Calculate:

Simplify the expression. Express your answer using only positive exponents.

Perform the conversion given 1 pound = 0.4536 kilograms. Convert 71.5 kg to lb If necessary, round the answer to 6 decimal places.

The difference n the noise levels of two sounds is measured in decibels, where the number of decibels = . Compare the noise levels when I₁ = 10^-12 watts/cm² and I₂ = 10^-9 watts/cm².

Simplify the expression. Express your answer using only positive exponents.

Simplify the expression. Express your answer using only positive exponents.

Evaluate:

Find c. Round your answer to 2 decimal places.

Perform the conversion: 352.7 meters to millimeters

Simplify the expression. Express your answer using only positive exponents.

Simplify the expression. Express your answer using only positive exponents.