Rational or Irrational
Is 7.22222... rational or irrational?
Rational
Evaluate: the square root of 25
positive or negative 5
The area of a square is 225 square feet. What is the length of each side?
15 feet
x^2=100
x = positive or negative 10
Order from least to greatest;
square root of 12, square root of 4, cube root of 27, 10
square root of 4, cube root of 27, square root of 12, 10
Is 5.3332233322... rational or irrational?
Rational (it repeats exactly!)
Evaluate: the square root of 196
positive or negative 14
The volume of a cube is 27 cubic inches. What is the length of each side?
x^3 = 216
x = 6
Order from least to greatest:
14.2222.., 3.6^2, 14 2/3, 14
2.6^2, 14, 14.2222, 14 2/3
Is 55.0812292.. rational or irrational?
Irrational
Evaluate: the cube root of 64
8
The volume of a cube is 343 cubic centimeters. What is the length of each side?
7 centimeters
x^2 = 196/4
x = positive or negative 7
Order from least to greatest:
-5, -6 2/9, - square root of 29
- 6 2/9, - square root of 29, -5
Is 1.15151515154... rational or irrational?
Irrational
Evaluate to the nearest tenth: the square root of 26
5.1
The area of a large square bulletin board is 144 square feet. How many feet of bulletin board boarder will be required to surround the bulletin board?
48 feet
x ^ 2 = 64 / 9
x = positive or negative 8/3
Order from least to greatest:
- 15.2, -15.5, - square root of 15
-15.5, -15.2, -square root of 15
Is pi divided by pi or pi/pi rational or irrational?
Rational
Evaluate to the nearest tenth: the square root of 115
10.7 is BEST
A square chicken coop has 32 chickens. Each chicken needs 2 square feet of space.
Find the area needed for all 32 chickens. THEN find the total amount of fencing required to protect the chickens in the coop.
32 feet of fencing will be required
x ^ 3 = 125 / 8
x = 5/2
Order from least to greatest:
square root of 25, -3, square root of 15, - square root of 3
-3, - square root of 3, square root of 15, square root of 25