Angle
What is an acute angle?
An acute angle is an angle that measures less than 90 degrees.
What is scientific notation?
Scientific notation is a way of writing very large or very small numbers using powers of 10.
What is a function in math?
A function is a rule that assigns exactly one output (y) for each input (x).
What is a cube root?
A cube root is a number that, when multiplied by itself three times, gives the original number.
What is irrational number?
An irrational number is a number that cannot be written as a fraction and has a non-repeating, non-terminating decimal.
What is a right angle?
A right angle is an angle that measures exactly 90 degrees.
Write 5,600,000 in scientific notation.
5,600,000 = 5.6 × 10⁶
Is this a function?
{(1, 4), (2, 5), (3, 6)}
Yes, it is a function because each input has only one output.
What is the cube root of 1?
∛1 = 1,
Is √16 irrational? Why or why not?
No, √ 16 = 4 √ 16 is rational
A straight angle measures how many degrees?
A: A straight angle measures 180 degrees.
Convert 9.1 × 10⁻³ to standard form.
9.1 × 10⁻³ = 0.0091
What is the domain of a function?
The domain is the set of all possible input values (x-values) for the function.
Is the cube root of a negative number possible?
Yes
Is π a rational or irrational number?
π is an irrational number because its decimal never ends or repeats.
What is the sum of the interior angles in a triangle?
The sum of the interior angles in a triangle is always 180 degrees.
Multiply (2 × 10³) × (3 × 10²). What is the answer in scientific notation?
6 × 10⁵
What is the range of a function?
The range is the set of all possible output values (y-values) the function can produce.
What is ∛125?
∛125 = 5
Compare √50 and 7.
√50 > 7
Two angles are supplementary. One angle measures 65°. What is the measure of the other angle?
115°
Divide (6 × 10⁶) ÷ (2 × 10²). What is the answer in scientific notation?
3 × 10⁴
What is f(–1) if f(x) = x² + 3x?
f(–1) = (–1)² + 3(–1) = 1 – 3 = –2
Solve: If ∛x = 6, what is x?
x = 6³ = 216
Is 4.123456789... (non-repeating and non-ending) rational or irrational?
It is irrational because it doesn’t repeat and doesn’t end.