ACT Math Flashcards
1
Q
what are the rules for matrices
A
of columns in 1st matrix=# of rows in 2nd matrix
2
Q
integer
A
any # postive, negative or zero
3
Q
Multiple
A
multiplication of a certain number
4
Q
Primer Number
A
a whole number that has two factors: 1 and itself
5
Q
composite number
A
whole number that is not prime
6
Q
Prime factorization
A
factoring a composite number to its primes
7
Q
percent change
A
final -initial/ initial * 100
8
Q
probability of either outcome (or)
A
add each probability
9
Q
probability of 2 outcomes “and”
A
multiple the 2 probabilties
10
Q
area of a equilateral traingle
A
(s^2cuberoot3)/4
11
Q
pythagoras identities
A
sin^2x+cos^x=1
