Irrational Numbers
Is 1.32 an irrational or rational number?
1.32 is rational because it terminates.
What is 32?
9
What is 200 in scientific notation?
2 x 102
2x = 4
x = 2
What’s the square root of 4?
2
Is 3/4 irrational?
No because an irrational number cannot be a fraction.
45•43
48
What is .003 in Scientific notation?
3 x 10-3
5x + 5 = 20
x = 3
What’s the cube root of 8?
2
Is
67/63
64
what is .345 in scientific notation?
3.45 x 10-1
2x + 1 = x + 11
x = 10
square root of 49 - 3 = ?
4
If a number has a repeating decimal, does that make the number rational or irrational?
Rational.
(93 • 96) - 92
97
Is 456.80 = 45.680 x 10-1
No, it is 4.5680 x 102
9x - 9 = 3x - 3
x = 1
cube root of 216/ 6 = ?
1
is the square root of 9 rational or irrational?
3, rational
(73 • 79) / (74 • 72)
76
What is .0008652309 in scientific notation?
8.652309 × 10-4
(x/9) - 8 = 17
x = 225
what’s the square root of 784?
28