Friday
December 6, 2013

# Posts by Cody

Total # Posts: 397

Chemistry
what is the concentration of a weak acid with a pH of 3.25, if the Ka of the weak acid is 1.6 x 10^-7 ?

SI Chemistry
hydrogen chloride gas reacts with oxygen gas to yield chlorine gas and water vapor in an equilibrium reaction. an experiment was performed in a closed vessel starting with a mixture of 0.50 M HCl and 0.050 M O2. the amount of chlorine was monitored until no change was observed...

Math
*facepalm* wow i can't believe i forgot that. thanks for including the y=a(x-3)^2+4 i cant believe i forgot to use point-slope form.

Math
how do i find the equation of a parabola given x intercepts x=0 and x=6 and a vertex at (3,4)?

also, if u need further help i recommend:physicsclassroom,com/Class/circles/u6l3c

the F of gravity is equal to (G*m1*m2)/(d^2) where g is the gravitational constant (6.673e-11 N*m^2/kg^2, notice the units are m not km), m1 is the mass of one object, m2 is the mass of the other object, and d= the distance between the centers of each object. in this situation...

Math
i am trying to transform a piece wise function, but my problem is that the lines are so irregular i cant tell if it is correct. i can't even tell the equation of the lines I'm attempting to transform. y= -2/3 x -6 if -9<=x<-6 y= 1/3 x if -6<=x<0 then the pr...

using a ti 89
i am attempting to graph the piecewise function y=(-2/3)x-6 if -9<=x<-6 (1/3)x if -6<=x<0 (((x-3)^2)/9) + (((y-0)^2)/16)=1 if 0<=x<=6 on a ti 89 titanium. i believe you must use the when( feature, but i haven't a clue as to how. we are using transformatio...