Wednesday, March 19, 2014

Linear Programing



Vertices:
(0,0)
(0,6)(6,0)

Constraints
Objective Function: C=3x+4y
x ≥ 0
y ≥ 0
x + y ≤ 6
3(0)+4(0)=0

Min

3(0)+4(6)=24

Max
3(6)+4(0)=18





Vertices:
(0,4)
(0,6)(5,4)

Constraints
Objective Function: C=2x+5y
x≤5
y≥4
2x+5y≤30
2(0)+5(4)=20





Vertices:
(1,2)
(1,8)(5,2)

Constraints
Objective Function: C=7x+3y
x ≥ 1
y ≥ 2
6x+4y ≤38
7(1,)+3(2)=13

Min
7(1)+3(8)=317(5)+3(2)=41

Max



Vertices:
(0,4)
(0,8)(6,8)

Constraints
Objective Function: C=4x+6y
x ≥ 0
y ≥ 0
-2x+3y ≤ 12
4(0)+6(4)=24

Min
4(0)+6(8)=484(6)+6(8)=72

Max



Vertices:
(0,0) , (0,5)
(2,3) , (8,0)


Constraints
Objective Function: C=8x+7y
x ≥ 0
y ≥ 0
4x+4y≤20
x+2y≤8
8(0)+7(0)=0
8(0)+7(5)=35

0=Min
8(2)+7(3)=37
8(8)+7(0)=64

64=Max






Vertices:
(0,4)
(3,0)
(4,3)

Constraints
Objective Function: C=3x+5y
x ≥ 0
2x+3y≥6
3x-y≤9
x+4y≤16
3(0)+5(4)=20




3(3)+5(0)=9


Min
3(4)+5(3)=27


Max



Wednesday, March 12, 2014

Measures of central tendency

Bailey Vegter

Measures of central tendency:

Organizing and Displaying Data
Frequency and Histograms
Two Way Tables
Data Distributions

Graphing Exponential Equations

Exponential Equations:
Equation:
Y=a*b^x-h+k

Growth:
b>1

Decay:
0<b<1

Compound interest formula

Compound Interest Formula:
A=P(1+r/n)nt
A=Amount
P=Principal
r=Rate of interest
n=Rate of times per year, interest is compounded
nt=Time in years

Examples:
1. If you start a bank account with $10,000 and your bank compounds the interest quarterly at an interest rate of 8%, how much money do you have at the year's end ? (assume that you do not add or withdraw any money from the account)
Answer:
$10,824.32

2. The first credit card that you got charges 12.49 % interest to its customers and compounds that interest monthly. Within one day of getting your first credit card, you max out the credit limit by spending $1,200 . If you do not buy anything else on the card and you do not make any payments, how much money would you owe the company after 6 months?
Answer:
$12,77

(little bit of a highlighter problem lol)