Volume, surface Area , Two-way tables & Matrices Test

Front

What is the formula for the volume of a hemisphere?

Back

V = (2/3)πr³, where r is the radius.

Front

How do you calculate the volume of a composite figure?

Back

Add the volumes of the individual shapes that make up the composite figure.

Front

What is the formula for the volume of a cylinder?

Back

V = πr²h, where r is the radius and h is the height.

Front

What is the formula for the surface area of a sphere?

Back

SA = 4πr², where r is the radius.

Front

How do you find the surface area of a cylinder?

Back

SA = 2πr(h + r), where r is the radius and h is the height.

Front

What is a two-way table?

Back

A two-way table displays data that summarizes the relationship between two categorical variables.

Front

How do you calculate the percentage of a subgroup in a two-way table?

Back

Divide the number in the subgroup by the total number in the category and multiply by 100.

Front

What are matrices?

Back

Matrices are rectangular arrays of numbers arranged in rows and columns.

Front

How do you determine if two matrices can be multiplied?

Back

The number of columns in the first matrix must equal the number of rows in the second matrix.

Front

What is the dimension of a matrix?

Back

The dimension of a matrix is given as 'rows x columns'.