Monday
October 20, 2014

Posts by North


Total # Posts: 4

Math
How much coffee that is $10 per pound should be added to 30 pounds of coffee at $3 per pound to get a coffee $5 per pound?
February 17, 2014

math
always true
April 14, 2010

Algebra
I'll answer the first question. The directrix is vertical so the parabola opens sideways. The equation is therefore of the form: 4p(x - h) = (y - k)^2 The directed distance from the directrix to the vertex is p. p = 6 - 1 = 5 4p = 4*5 = 20 p is positive so the parabola ...
November 29, 2008

precalculus
Let P = population in millions t = time in years Population growth is continuous. For continuous compounding use the formula: P = 65*e^(.015t) For the population in 12 years we have: P = 65*e^(.015*12) = 65*e^(.18) P = 77.8 million
November 25, 2008

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