Real Numbers
How do you know if a number is irrational
It's non-repeating and non-terminating
Why do we put a positive-negative sign in front of square roots?
A square root might be positive or negative.
Why do we use scientific notation
To represent very large, or very small numbers
When you have the same base multiplied together, what do you do with the exponents?
You add them
Name three types of transformations
Translation, reflection, and rotation
Will the square root of 49 will be rational or irrational? Explain
It will be rational because 49 is a perfect square.
Solve the following equation
x2 = 81
x = ∓9
Convert the following into scientific notation and round to the nearest tenths place: 248,265,034
2.5 x 108
Give an equivalent expression:
5,820,718,4540
1
This type of transformation moves all points and all sides of a figure in the same direction by the same amount.
What is Translation?
-4 is part of which numerical categories?
Real number, Rational Numbers, Integer
Estimate the value of the square root of 77
8.77
Solve the following
(2.3 x 106)(8.2 x 104)
1.886 x 1011
Give an equivalent expression;
54 ᐧ 74
354
This type of transformation moves a figure around a fixed point.
What is rotation?
What is a natural number?
All numbers that do not need to be written as a fraction, including 0.
Solve the equation m3 = -3375
m = -15
how many times larger is 8.4 x 108 than 4.2 x 104
2 x 104
Make an equivalent expression
x2 ᐧ x9
x-11x22
This type of transformation moves a figure across a line of reflection.
What is reflection?
Convert .67... repeating into a fraction
67/99
A aquarium can hold up to 2744 cubic feet of water. What is the area of one side of the aquarium?
196 square feet.
Solve the following:
9.7 x 108 - 3.9 x 107
George did not account for the exponents correctly. He divided them instead of subtracting them
Daily Double!
Give an equivalent expression to the following:
(5 + x4)2
When two figures have the same shape and size they are...
Congruent