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1

exponent

a superscript which indicates the number of times a base number is multiplied by itself

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2

base number

the number on which exponentiation is being carried out

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3

scientific notation

a convenient way of expressing numbers that are too large or too small

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4

equation

an **equation** consists of an equal sign and quantities (represented by symbols) to its left and to its right

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5

quadratic equation

an equation in the form ax²+bx+c=0, where a, b and c are constants

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6

root

a solution to a quadratic equation

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7

simultaneous equation

independent equations that share unknowns which are solved together

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8

direct relationship

a relationship between two variables such that an increase in one causes an increase in the other by the same factor

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9

slope

the steepness of a line, measured by the ratio Δy/Δx

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10

inverse proportion

a relationship between two variables such that an increase in one causes a decrease in the other by the same factor

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11

inverse square proportion

a relationship between two quantities such that one quantity is inversely proportional to the square of the other

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12

common logarithm

common logarithm of a number is the power to which 10 must be raised to obtain that number

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13

natural logarithm

natural logarithm of a number is the power to which e must be raised to obtain that number

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14

area of rectangle

A=ab

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15

area of circle

A=πr²

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16

volume of cuboid

V=abc

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17

surface area of sphere

A=4πr²

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18

volume of sphere

V=4πr³

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19

volume of cylinder

V=πr²h

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20

similar triangles

triangles with equal corresponding angles and equal ratios of corresponding sides

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21

congruent

triangles that have the same size and shape

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22

right triangle

a triangle in which one angle is 90°

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23

radians

angles can be expressed in degrees or ______

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24

360**°**

the trigonometric functions, sin and cos are periodic with a period of __

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25

90**°**

the trigonometric functions, sin and cos are __ out of phase

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26

trig identity

an equality that involves trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined

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