Crunch Time Week 1 Flashcard

Front

What is cardiac output?

Back

Cardiac output (D) is the amount of blood that the heart pumps per minute, calculated using the formula D = V · R, where V is the volume of blood pumped with each heartbeat and R is the number of heartbeats per minute.

Front

How do you express V in terms of D and R?

Back

V = D/R

Front

What is the coefficient of x in the expression 8 + 5x - y?

Back

The coefficient of x is 5.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is less than, greater than, less than or equal to, or greater than or equal to the other.

Front

Solve the inequality: 5y - 4 ≤ 2y + 8. What is the solution set for y?

Back

{y | y ≤ 4}

Front

What are the two solutions for the equation |2x| = 8?

Back

The two solutions are 4 and -4.

Front

How do you create an inequality to represent a budget constraint?

Back

An inequality can be created by summing the costs of items and setting it less than or equal to the budget. For example, if blackberries cost $8 per pound and raspberries cost $9 per pound, the inequality is 8b + 9r ≤ 40.

Front

What does the symbol ≤ mean in mathematics?

Back

The symbol ≤ means 'less than or equal to'.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is less than, greater than, less than or equal to, or greater than or equal to another.

Front

What is the solution to the inequality 3x + 5 > 11?

Back

x > 2.