Alg II Formula Sheet - Virginia
[Pages:1]Algebra II Formula Sheet 2009 Mathematics Standards of Learning
Geometric Formulas:
h
b
A 1 bh
2
s
s
p 4s A s2
w
l
p 2l 2w A lw
a
c
b
a2 b2 c2
Quadratic Formula:
x b b2 4ac , where ax2 bx c 0 and a 0 2a
Statistics Formula:
Given:
x represents an element of the data set,
represents the mean of the data set, and represents the standard deviation of the data set
z-score ( z ) x
Permutations and Combinations Formulas:
If n and r are positive integers and n r,
nPr
n!
(n r)!
nCr
n!
r!(n r)!
Sequence and Series Formulas:
Given:
an represents the value of nth term Sn represents the sum of first n terms S represents the sum of an infinite geometric series r represents the common ratio
d represents the common difference
Arithmetic
an a1 (n 1)d
an an 1 d
Sn
n
2
(a1
an )
Sn
n
2
2a1
n 1d
Geometric
an a1rn 1
an an 1 r
Sn
a1 (1
(1
rn), r r)
1
S
a1 , r (1 r)
1
Copyright ?2011 by the Commonwealth of Virginia, Department of Education, P.O. Box 2120, Richmond, Virginia 23218-2120. All rights reserved. Except as permitted by law, this material may not be reproduced or used in any form or by any means, electronic or mechanical, including photocopying or recording, or by any information storage or retrieval system, without written permission from the copyright owner. Commonwealth of Virginia public school educators may reproduce any portion of this mathematics formula sheet for non-commercial educational purposes without requesting permission. All others should direct their written requests to the Virginia Department of Education, Division of Student Assessment and School Improvement, at the above address or by e-mail to Student_Assessment@doe..
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