Irrational/Rational
Intervals
Real Numbers
Roots
Logarithms
100

These rational numbers are referred to as "the counting numbers" and they include 1, 2, 3,...

Natural numbers

100

What is a half open interval (a, b]? 

A set of numbers between a and b, including b but not including a. 

100

True or False: Some real numbers can be classified as both rational and irrational.

True

100

In the formula , what does a represent? 

The radicand. 

100

What is log2 8 = ?

3

200

What is the difference between a rational number and an irrational number?

Rational numbers can be expressed as the quotient between two integers. Irrational numbers cannot. Irrational numbers are expressed as decimals that are infinite and not repeating. Irrational numbers cannot be expressed as fractions.

200

Draw (4, 8) on a number line. 

_________________________

       o___________o

      4                      8

200

Is √169 natural, a negative integer, fractional, or irrational?

Natural (√169 = 13)

200

Express ∛64 as a power.

641/3

200

Write the equation log3 729 = 6 in exponential form.

3= 729

300

Is π  an irrational or a rational number?

Irrational

300

Write  2 < x ≤ 3  in interval form then draw it. 

(2, 3]

________________________ 

   o______________@

   2                         3

300

Is -√3 natural, a negative integer, fractional, or irrational?

Irrational.

300

Simplify √18 in radical form.

√18 = 3√2

300

Solve log4 1,024 =

5

400

Is √2  a rational number or irrational?

Irrational

400

Write  [–1, +∞)  as an inequality and draw it.

{x/ x ≥ -1 }

_______________________

        @------------------------>

        -1                            

400

Approximately represent  as a real number rounded to the hundredths place. 

3,85 (3,8464 rounded to the hundredths place)

400

Simplify (√15)/(√20)=

(√3/4)

400

Solve log√ 2 5 = (round to the nearest thousandth)

4.644

500

Is ∛343  a rational or irrational number?

Rational (∛343 = 7).

500

For which values of x is the following expression true?

Square root of (x+2)(x-3)

 x ≤ –2 or if x ≥ 3

(-, -2] U [3, )

___________________________________

<-----------@                  @------------->

-          -2                  3                

500

What does  represent?

The golden ratio.

500

Rationalize the following: 

(√12)/(√7 + √3)

500

Solve log2 3 - log2 24 =

-3

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