Saturday
May 25, 2013

# Posts by Julia

Total # Posts: 432

Algebra II
the 5 should be on top then the signma symbol in middle and the k=2 on the bottom with the equation (k^2 -5k+2) to the right of all of it

Algebra II
I solved one of these sigma notations and had Reiny check it in an earlier post but this one totally befuddles me- Which of the following terms would not be in the series generated by the expression: 5 Signma symbol (k^2-5k+2) k=2 the choices are 2, -2, 4 or -4If you could eve...

Algebra II
Please help-I need to write 4+6+8+10 in sigma notation would it be sigma sign in middle (3) on top of sign, n=0 on bottom of signma notation and to the right it would be (4+2n) so it would look like-- (3) (sigma in middle) (4+2n) n=0

ordered fields
prove (3x^2 + 4x-1)/(7x^5+5)>0 is field. can you just prove one of the addition axioms?

Chemistry
I got error also

Chemistry
I'm stuck there too Ryan

Chemistry
A solution is prepared by dissolving NH3(g) in water according to the following equation. NH3(g) + H2O(l)=NH4^+(aq)+ OH^-(aq) If the pH= 9.60 what is the [OH-] in the solution.

Chemistry
q= 20.00 C =125.0g x 98.0 C x 25.80 C -20.00??

Chemistry
still dont get it

Chemistry
a coffee cup calorimeter normally consists of two nested styrofoam cups with a lid. a coffee cup calorimeter of this type contains 125.0 g of water at 20.00 degrees C. A 120.0 g sample of copper metal is heated to 98.0 degrees C by putting it into a beaker of hot water. The co...

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