Parallel Lines
Lines are parallel if they are always the same distance apart (called “equidistant“), and will never meet. Definition of Parallel Lines Parallel lines in geometry are lines in a plane which do not meet. They don’t intersect each other at any point. By extension, a line & a plane, or 2 planes, in 3D Euclidean … Continue reading "Parallel Lines"
Read MoreSubtracting Fractions
Definition A fraction like 2/3 says we have 2 out of the 3 parts the whole is divided into. The top number is called numerator The bottom number is called denominator There are 3 simple steps to subtract fractions Make sure the bottom numbers (the denominators) are the same Subtract the top numbers (the numerators). … Continue reading "Subtracting Fractions"
Read MoreRelative Frequency
Definition Relative Frequency is How often something happens divided by all outcomes. To compute relative frequency, one obtains a frequency count for a subgroup of the population and a frequency count for the total population. The relative frequency is: How to Find Relative Frequency Relative frequency = Subgroup count / Total count The above equation … Continue reading "Relative Frequency"
Read MoreReciprocal of Number
The reciprocal of a number is one divided by that number Reciprocal of a Fraction To get the reciprocal of a fraction, simply switch the top and bottom of the fraction (numerator and denominator). Reciprocal of a Reciprocal The reciprocal of a reciprocal takes you back to where we started: Remember that “Reciprocal” comes from the Latin reciprocus … Continue reading "Reciprocal of Number"
Read MoreDifference
Definition Difference is the result of subtracting one number from another. How much one number differs from another. More Examples Here are more examples about difference: Numbers Difference Reason 7 and 5 2 7 – 5 = 2 4 and 9 5 9 – 4 = 5 11 and 8 3 11 – 8 = … Continue reading "Difference"
Read MoreMultiplicative Inverse
Multiplicative Inverse is Another name for Reciprocal. What you multiply by a number to get 1 In other words: When we multiply a number by its “Multiplicative Inverse” we get 1. But not when the number is 0 because 1/0 is undefined! More Examples of Multiplicative Inverse Number Multiplicative inverse 2 1/2 3 1/3 5 … Continue reading "Multiplicative Inverse"
Read MoreAngles
Definition An angle measures the amount of turn Names of Angles As the Angle Increases, the Name Changes: Type of Angle Description Illustration Acute Angle is less than 90° Right Angle is 90° exactly Obtuse Angle is greater than 90° butless than 180° Straight Angle is 180° exactly Reflex Angle is … Continue reading "Angles"
Read MoreInfinite Series
Definition of Infinite Series Infinite series are the sum of infinitely many numbers listed in a given order & related in a given way. For an infinite series a1 + a2 + a3 + … , a quantity sn = a1 + a2 + … + an, which involves adding only the first n terms, is called a partial sum. For Sn approaches a fixed number … Continue reading "Infinite Series"
Read MoreAdditive Inverse
Definition of Additive Inverse The additive inverse of a number is another number you add to a number to create the sum of zero. In other words, additive inverse of x is another number, for examle y, as long as the sum of x + y equals zero. The additive inverse of x is equal … Continue reading "Additive Inverse"
Read MoreComposite Number
Composite number is a whole number that can be made by multiplying other whole numbers. Example: 10 can be made by 5 × 2 so is a composite number. Not Composite number 5 = 1 × 5, Is not composite number because 1 × 5 isn’t using other whole numbers 7 = 2 × 3.5, Is … Continue reading "Composite Number"
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