ACT prep math

Front

What is the relationship between the number of people in line and the waiting time for a roller coaster ride?

Back

The waiting time increases proportionally with the number of people in line.

Front

What is a 30°-60°-90° triangle?

Back

A special right triangle where the angles are 30 degrees, 60 degrees, and 90 degrees. The sides are in the ratio 1:√3:2.

Front

If the waiting time for 150 people is 20 minutes, how long will it be for 1,200 people?

Back

160 minutes.

Front

How do you find the value of x in a triangle?

Back

Use the properties of triangles, such as the sum of angles in a triangle equals 180 degrees.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is a special triangle?

Back

A triangle with specific angle measures that allow for predictable side ratios.

Front

How do you determine the slope of a line from a graph?

Back

Slope = (change in y) / (change in x).

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.