Download Deal with Data Unit

Unit 2: The Powers That Be Vocabulary
Internet Resources:
http://www.apskids.org/students.asp
http://www.gohrw.com/gopages/ma/msm3_07.html – Course 3 Math (see textbook)
http://mathforum.org/library/drmath/drmath.middle.html
http://www.regentsprep.org/Regents/math/ALGEBRA/AO5/indexAO5.htm
http://www.regentsprep.org/Regents/math/ALGEBRA/AO2/indexAO2.htm
http://www.regentsprep.org/Regents/math/ALGEBRA/AT1/indexAT1.htm
Term
Definition
Exponent
The number of times a base is used as a factor in repeated
multiplication.
Base
When a number is raised to a power, the number that is used as a
factor is the base.
A number produced by raising a base to an exponent.
Power
Exponential Form
Scientific Notation
A number is in exponential form when it is written with a base and
an exponent.
A method for writing a very large or very small number by using
powers of 10. The statement is expressed a number greater than or
equal to 1 but less then 10 and a product of a power of ten (i.e.:
8.965 x 10-5 or 5.25 x 1018).
The positive or non-negative square root of a number.
Principal Square Root
Radical
Significant Digits
The symbol
used to represent the square root of a number.
The digits of a number that express a quantity to some specific
degree or accuracy, rounding the last figure up to the next would be
5 or greater.
A number raised to the second power.
Square
A number that has a rational number as its square root..
Perfect Square
A number raised to the third power.
Cubed Root
Rational Numbers
A real number that can be expressed as the ratio of two integers
with a non-zero denominator.
Irrational Numbers
A real number that cannot be expressed as the ration of two
integers.
Term
Definition
Natural Numbers
The set of counting numbers in the real number system.
{1, 2, 3, 4, …}
Whole Numbers
The set of counting numbers and zero in the real number system.
{0, 1, 2, 3, …}
Integers
The set of whole numbers and their opposite in the real number
system.
{… -3, -2, -1, -, 1, 2, 3, …}
A rational or irrational number.
Real Numbers
Pythagorean Theorem
In a right triangle, the square of the length of the hypotenuse is
equal to the square of the lengths of the legs (sides).
In a right triangle, the sides that includes the right angle.
Leg
The side opposite the right angle in a right triangle.
Hypotenuse