Running head: CULTURE AND TRUST IN NETWORKS
The Social Structure of Affect- and Cognition -based Trust
in Chinese and American Managerial Networks
Roy Yong-Joo Chua
Michael W. Morris
Paul Ingram
Columbia University
Columbia Business School
7X, Uris Hall,

MATH 30 WC
ELLIPSE
1. For each of the following, determine the center of the ellipse and the endpoints of each axis.
x2 y2
a.
1
64 36
x2 y2
b.
1
16 49
2
2
x 7 y 5
c.
1
4
25
2
d.
2
x 3 y 8 1
9
100
e. 9x 2 16y 2 144
2
2
f. 49x 2 7y 1 36
Tough Question!
2. S

Fractions Unit Homework Worksheet Packet
HW 8 Worksheet #1-5
Name:
Show ALL of your work!
For #1-3, find the value of each expression.
2
1.) 4 2(8 6)
2.) 3 16 2 7
7
1
2
3.) 6 x 4( x y) for
x 2 & y 5
For #4-5, simplify each expression as much as possible.

Name _ Period _
Box & Whisker Worksheet
For questions 1 6, refer to the box & whisker graph below which shows the test results of a math
class.
Test Scores (as %) for 6th Period
38
72
88
_
1. What was the high score on the test?
_
2. What percent of the c

Matter Homework Packet
Name _
Period _
Physical and Chemical Changes and Properties of Matter Worksheet
Classify the following as chemical change (cc), chemical property (cp), physical change
(pc), or physical property (pp).
1. _ Heat conductivity
2. _ Si

Homework: Variables and Expressions
I. Indicate with math symbols what operations are being described by the given word(s). Use
, -, x, or symbols.
1. sum _
2. product _
3. decreased by _
4. quotient _
5. increased by _
6. difference _
7. more than _
8. l

Homework: Order of Operations
Use pemdas to help simplify each expression. Check your work on a calculator and record keystrokes
if your answers do not match each other.
1. 8 + 7 9
11. 12 + 42
2. 35 (17 2) 5
12. 24 9 2 + 6 3
3. 90 22
28 11
13. 45 + 3
9
4.