nico

3 Questions
0 Answers

0

782

2

+12

exponential growth

The population of a city totals 160000 in 1998. if growth rate of city is a constant 1,5%, when will population of city reach 350000.
formula:P=P0e^kt
p=current population
po=original population
k=rate of growth t=time period. Can read more ..

nico Jan 7, 2013

0

762

1

+12

write simultaneous equations as matrix equations

hi there, can anyone assist please,
WRITE THESE SIMULTANEOUS EQUATIONS AS MATRIX EQUATIONS
3X+7Y-12=0,
2X-5Y+7=0,
5X+2Z=3

nico Jan 6, 2013

0

756

1

+12

solve simultaneous equations

y=x^2-7x-7, y=3x+5
i am stuck, can anyone assist please

nico Jan 4, 2013