Nouns are used in name people, animals. places.
things, and dads In Spanish, every noun has a gendel
. Masculine nouns referring to people, animals, or things
usually end in -o: ei libro. Feminine no
N UMBER S YSTEMS
T he n atural numbers are t he n umbers we c ount with:
1, 2. 3, 4, 5, 6, , 27, 28, . .
T he whole numbers are the numbers we c ount with and zero: 0, 1, 2, 3, 4, 5, 6, . T he integers are the numbers we count with, their negatives. a nd
CALCULUS REFERENCE 3/18/03 10:49 AM Page 1
DERIVATIVES AND DIFFERENTIATION
Definition: f (x) = lim
f (x + h ) f (x ) h h 0
f (x) dx = F (x) + C if F (x) = f (x) .
1 Calculus 4/14/03 4:08 PM Page 1
BACKGROUND AND FUNCTIONS
WHAT IS CALCULUS?
BU THE DIF
represented horizontally, and the dependent variable vertically. A graph represents a function as long as it passes t
Astronomy 4.x.1 3/21/03 10:49 AM Page 1
Wave description: The periodic oscillation of electric and magnetic fields in space. Characterized by the following: 1. Frequency of the oscillation, , measured in cycles per second (hertz).
sounds like ea in learn
sound like ay in may
sound like a in fare
sound like ee in see
soixante et onze
a, , and
sound like a in father
, au, eau, ot