CC2 Chapter 8

Front

What is the median of a set of numbers?

Back

The median is the middle value in a list of numbers sorted in ascending order. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the median of the numbers: 2, 5, 4, 3, 7, 5, 5?

Back

First, sort the numbers: 2, 3, 4, 5, 5, 5, 7. The median is 5.

Front

What do you do with like terms in algebra?

Back

You combine like terms by adding or subtracting their coefficients.

Front

What is the circumference of a circle?

Back

The circumference is the distance around the circle, calculated as C = πd or C = 2πr, where d is the diameter and r is the radius.

Front

How do you calculate the circumference of a circle with a diameter of 12 cm?

Back

C = πd = π * 12 cm ≈ 37.7 cm.

Front

What is the area of a circle?

Back

The area is the space contained within the circle, calculated as A = πr², where r is the radius.

Front

How do you find the area of a circle with a radius of 5 m?

Back

A = πr² = π * (5 m)² ≈ 78.50 m².

Front

What do you do if there are two middle numbers when finding the median?

Back

Add the two middle numbers together and divide by two.

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its area?

Back

Area = 10 cm × 5 cm = 50 cm².