Flashcard #12 - SREB

Front

What is the maximum value (MAX) in a given set of numbers?

Back

The maximum value (MAX) is the largest number in a set. For example, in the set {3, 7, 11}, the MAX is 11.

Front

How do you calculate the total number of tickets sold?

Back

To calculate the total number of tickets sold, sum the number of tickets sold for each category or event. For example, if 50 tickets were sold for Event A and 94 for Event B, the total is 50 + 94 = 144.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting variables with numbers and performing the necessary operations. For example, evaluating A = 2 + 3 results in 5.

Front

How do you determine the time it takes for an object to reach the ground?

Back

To determine the time it takes for an object to reach the ground, use the formula t = √(2h/g), where h is the height and g is the acceleration due to gravity (approximately 9.81 m/s²). For example, if h = 32 m, t = √(2*32/9.81) ≈ 8 seconds.

Front

What is the formula for calculating percentage?

Back

The formula for calculating percentage is: (Part/Whole) * 100. For example, if 20 out of 100 students passed, the percentage is (20/100) * 100 = 20%.

Front

Define the term 'variable' in mathematics.

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations. For example, in the equation x + 5 = 10, x is the variable.

Front

What is the difference between a constant and a variable?

Back

A constant is a fixed value that does not change, while a variable can take on different values. For example, in the equation y = 2x + 3, 3 is a constant and x is a variable.

Front

Explain the concept of 'average' or 'mean'.

Back

The average (mean) is calculated by adding all values in a set and dividing by the number of values. For example, the average of {2, 4, 6} is (2+4+6)/3 = 4.

Front

What is the significance of the term 'range' in statistics?

Back

The range is the difference between the highest and lowest values in a data set. For example, in the set {3, 7, 11}, the range is 11 - 3 = 8.

Front

How do you solve a linear equation?

Back

To solve a linear equation, isolate the variable on one side of the equation. For example, to solve 2x + 3 = 7, subtract 3 from both sides to get 2x = 4, then divide by 2 to find x = 2.