Real Numbers
True or False: 0.6666666.... is an irrational number because it never ends.
False.
x3= 1
x = 1
It is best to compare the numbers by changing them all into ____________________
decimals
The sides of a square letter are 5 inches each. How many square inches is the area of the letter?
25 inches squared
What question is the square root symbol asking?
Which number is the only whole number that is not a natural number?
0
Addition is to subtraction as cube root is to ______________.
cubing a number
Which number is LARGER \/4 or 2?
They are equal
The 99 Crystal Cafeteria is 100 square feet. Use an equation to find the length of one side.
100 =x^2
10=x
Between which two whole numbers is the square root of 12?
3 and 4
Which of these square roots is NOT a real number?
- \/64 or \/ -64
\/ -64
\/ x =17
x=289
Which number is LARGEST?
\/45 , 5 , 45/2
\/45
Jennifer buys paper that is 9.5 x 11 inches. What is the largest perfect square she can cut from this paper? What will be the area of this square in inches?
81 inches square (9x9)
What are both possible square roots of 16?
-4 and 4
True or False: All negative numbers are integers.
False.
3\/ x = -4
x = -64
Put the numbers in order from least to greatest.
\/15 , 9/3, pi, 3.5
9/3, pi, 3.5, \/15
Wyoming is almost a perfect square and has an area of 97,914 square miles. If Wyoming was a perfect square, write the equation that could be used to find the length of each of its borders.
97914 = x2
Why are there two answers to a square root equation and only one for any cube root?
- x - = +
- x - x - = -
Explain the difference between rational and irrational numbers.
rational can be represented by fractions and irrational cannot.
x2= 131
x= \/131
Which number is smallest?
-1.2 , -\/2 , -4/5, -1.452354...
-1.452354...
A jewelry box has sides of 6 inches each. Find the volume of the box.
6x6x6 = 216 in^3
A square picture frame has an area of 32. Find an approximate side length.
5.6568542494924...