Irrational Numbers
What is an irrational number?
An irrational number is a number that keeps going, it doesn't terminate.
What is an exponent?
An exponent is a quantity representing the power to which a given number or expression is to be raised, usually has a symbol beside the number or expression.
Solve the following using scientific notation
Mrs. Kipling just bought a rectangular fence for her puppy. The dimensions are 2*103 by 6*104. Find the answer.
1.2*108
What is the difference between and equation and a expression?
An expression has no equal sign as an equation does.
What is the square root of 8
2.82842712...
What is the most common irrational number?
Pi
What is the exponent in the example?
28
8
The distance from the school to my house is 7 million inches. Write that in scientific notation.
7*107
Solve
2a=8
What is a?
a=4
what is 169 square rooted?
13
What is the difference between rational and irrational?
Rational is either a fraction or terminating number as an irrational number is a number that never stops.
When would you use an exponent most commonly?
Equations
What is this number undone in scientific notation?
1.5*10^4
15000
2(8x+2)=18x
Solve for x.
x=2
What is 64 cubed?
4
Is 2 pied irrational?
Yes
Which number is an exponent?
642
2
Dylan had to solve this problem in math class today
(1.17*10^5)(8*10^3)
He got the answer 936,000,000. Is he correct?
The answer is 9.36*10^8 therefore he is correct
3/2x*1/2(x-4)=6
What is x
4
What is 125 cubed?
5
How is 20 squared irrational?
It is irrational because it doesn't terminate.
Is 1000 the exponent?
100023
no
The state of Michigan is 9.6*10^4 square miles. The state of Mississippi is 4.8*10^4 square miles. Approximately how many times bigger is Michigan than Mississippi?
2 times bigger
Mary bought 6 pencils for $35. What was the cost for each one and write out what the equation should be.
7
6x=35
what is 1728 cubed?
12