rational & irrational number
Is -109 a rational number?
Explain.
Because it can be written as fraction or terminating decimals.
Evaluate square root 49
7 and -7
Evaluate the cube root 64
4
What is 2/9 as a decimal. Is it terminating or repeating?
0.222.... Repeating
x2=64
x=-8 and 8
Is pi a rational number.
Explain
No, the pattern doesn't repeat itself.
Evaluate cube root -1
-1
What is 3/8 as a decimal. Is it terminating or repeating?
0.375 terminating
-5x2=-80
x=-4 and 4
Is square root of 7 rational number?
Explain
No,
Because 7 is not a perfect square.
what is 142
196
Evaluate the cube root of 27
3
What is 0.666… as a fraction
2/3
x2-8=73
x=-9 and 9
Give 3 examples of rational numbers
Answers will Vary
The square root of 11 is between which two positive integers? Which is it closest to?
3 and 4.
3
Give three examples of perfect cubes
1, 8,27,64,125,216,343,512,729,1000
What is 7/20 as a decimal? Is it terminating or repeating?
.35 Terminating
49x2=36
x= -6/7 and 6/7
Give 3 examples of irrational number.
pi, numbers are not repeating, terminating decimals, or non-perfect square under square root.
The square root of 80 is between which two positive integers? Which is it closest to?
8 and 9
9
give 2 numbers that are both perfect squares and perfect cubes
1,64
Which is larger 33/100 or 1/3?
Explain
1/3 because 0.333... will be larger than 0.33
5x2-8=-8
x=0