ACT MATH

Front

What is the relationship between the length (l) and width (w) of a box if the length is 3 inches less than twice the width?

Back

The relationship is given by the equation: l = 2w - 3.

Front

How do you calculate the angle between the hour and minute hands of a clock?

Back

The angle can be calculated using the formula: Angle = |(30*hour - (11/2)*minutes)|. For 1 o'clock, it is 30°.

Front

What is the greatest common factor (GCF) of a set of numbers?

Back

The GCF is the largest positive integer that divides each of the numbers without leaving a remainder. For 42, 126, and 210, the GCF is 42.

Front

How do you determine the probability of selecting a number divisible by both 2 and 3 from a set?

Back

Front

What must be true about positive integers n, a, b, and c if n < a, c > a, and b > c?

Back

It must be true that b - n > a - n.

Front

What is the formula for the area of a rectangle?

Back

The area A of a rectangle is given by the formula: A = length × width.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

The slope m is calculated as: m = (y2 - y1) / (x2 - x1).

Front

What is the Pythagorean theorem?

Back

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the formula for the circumference of a circle?

Back

The circumference C of a circle is given by the formula: C = 2πr, where r is the radius.