GRE Math
Ace your homework & exams now with Quizwiz!
probability of an event occurring =
(number of successful outcomes) / (total number of possible outcomes)
Angles in a triangle always add up to
180 degrees
prime numbers
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
Common Pythagorean Triples
3,4,5 5,12,13 8,15,17 7,24,25
Area of a circle (using diameter)
A=(1/4)πd²
Area of a triangle
A=1/2bh
Area of a trapezoid
A=1/2h(b1+b2)
Area of a circle (using radius)
A=πr²
Circumference of circle (radius)
C=2πr
even * even =
even
even * odd =
even
even + even =
even
odd + odd =
even
even + odd =
odd
odd * odd =
odd
probability of 2 independent events occurring =
probability of event A * probability of event B
