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Math Basics Exam Texas WGU
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Terms in this set (47)
Range
The difference btw the highest number and the lowest number
Mean
Adding up all the numbers then divided the solution by how many numbers there are
Mode
The number that occurs the most
Mid-range
Highest and lowest number added together and then divided by two
Median
Place the numbers in value order and find middle number.
*If there are two middle numbers you have to add the numbers and divide by two
Reduction
Smaller
Dilation
Make bigger
Reflection
Same
Translation
Sliding over
Pythagorean Theorem
Place Value Chart
Multiplying Exponents
5 to the 3rd power
5x5x5=125
Negative Exponents
5 to the -3 power
1/(5x5x5)= 1/125=0.008
Exponents 1
Exponent: You just have the number itself
9 to the 1st power= 9
Exponent 0
Exponent: You get 1
9 to the 0 power= 1
Less Than < > Greater Than
The alligator's mouth always opens towards the larger value so it eats as much as possible
Quadrant Plane
Absolute Value
Only how far a number is from zero
Congruent Angles
Have the same measure vertical angles are congruent
Adjacent Angles
Pair of Angle with common vertex and common side
Complementary Angle
Two angles who measures add up to 90 degrees
Vertical Angle
A pair of angles that are formed by intersecting lines and have no side in common
Acute Angle
Less than 90 degrees
Right Angle
Exactly 90 degrees
Obtuse Angle
Greater than 90 degrees but less than 180 degrees
Straight Angle
Exactly 180 degrees
Exterior Angle
An angle between any side of a shape and a list extended from the next side
Reflex Angle
Greater than 180 degree
Supplementary Angles
2 angles that = 180 degree
Complementary Angle
Angle add up to 90 degrees
Parallel lines
Lines in the same plane and that do NOT intersect
Perpendicular Lines
Intersecting lines that form a right angle
Equilateral Triangle
All sides are congruent
Scalene Triangle
No sides are congruent
Isosceles Triangle
At least two sides are congruent
GCF Greatest Common Factor
The greatest factor that divides 2 numbers
LCM Least Common Factor
2 numbers is the smallest number (not 0) that is a multiple of both
Prime Number
Whole number greater than 1 whose only 2 whole numbers factor is 1
Area of a Trapezoid
Area of a Circle
Circumference of a circle
Volume of a box
Area of a triangle
(1/2) bh
Area of a rectangle
Area of a cylinder
Area of a Parallelogram
Area of a sector
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