Math 7A Christmas break review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

If the ratio of tenants to cars is 3:5 and there are 30 tenants, how many cars are there?

Back

50 cars.

Front

What is the value of 8 raised to the power of 3?

Back

512.

Front

How do you write 564,000,000 in scientific notation?

Back

5.64 x 10^8.

Front

What is the simplest form of the ratio 18 ounces to 3 cups?

Back

6 to 1.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its most basic form, making it easier to understand or calculate.

Front

What is the power of a number?

Back

The power of a number refers to the number of times that number is multiplied by itself.

Front

What is the result of (3x^4y^5)^2?

Back

9x^8y^10.

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form.