Unit 2 Extra Credit (copy)

Front

What is the value of r if r = 256, r = 112, or r = 175 and the correct answer is r = 112?

Back

r = 112 is the correct answer.

Front

Solve the equation: p + 3.4 = 8.7

Back

p = 5.3

Front

What is the solution to the equation |n+5|=21?

Back

n = -26 or n = 16

Front

Which best describes the solution to the equation |3p + 4| - 8 = -6?

Back

The equation has no solution.

Front

What does it mean when an equation has no solution?

Back

It means there are no values for the variable that can satisfy the equation.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

How do you solve an absolute value equation?

Back

To solve an absolute value equation, set the expression inside the absolute value equal to both the positive and negative of the other side of the equation.

Front

What is the first step in solving the equation |x| = a?

Back

The first step is to consider two cases: x = a and x = -a.

Front

If |x - 3| = 5, what are the possible values of x?

Back

x = 8 or x = -2.

Front

What is the definition of a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations.