PreAlgebra
asked by
8th Grade
Respond to this Question
Similar Questions

algebra
what is the system of equation of: 0.25x+0.15y=2.5 1.25x1.25y=7.5 
algebra
complete factorization y^425y^2+144 (^) denotes following number is Power y^4  25y^2 + 144 You might try replacing y^2 with x. Therefore your statement becomes: x^2  25x + 144 ...which is easier to factor. 
Math
Sorry! I don't get this one either.. limit of (f(x+Δx)f(x)) / Δ x with Δ x > 0 f(x)= 1/(x+3) My work so far before I got stuck... 1/((x+Δx)+3) = 1/(x+Δx+3)  1/x+3 = 1(x+3)/(x+Δx+3)(x+3)  
Chemistry
How would you exactly start the first problem? My thermodynamic skills is a bit rusty. I am assuming I have to use ΔH°f under the given reaction..? But then..we barely covered ΔG° in class. Am I to use this equation, 
Algebra
I am solving for sytems of equations using the elimination method. Book says answers are 0,1. I have tried solving for both x & y using both the 5 and 25 . I am not getting the 0,1 as my answer. 5x5y=5 25x25y=22 
Advanced Algebra
25x^425x^2+6=0 solve type an exact answers using radical and rationalize all denominators 
Algebra story problem
I need to turn this story into an algebra problem: Your cousin ears $25 per week babysitting and receives one $5 bonus. You earn $15 per week mowing lawns and $12 a week running errands. After working the same number of weeks, you 
Calc again sorry
4) The graph of y = (x)/(1+25x^2) for x is greater than or equal to 0 has a horizontal tangent at x = what. So what I did was find the first derivative. I did the quotient rule and ended up with x50x  1+25x^2  
chemistry
Suppose the ΔGof, ΔHof, and ΔSo are available and valid at 298 K. Which equation(s) could be used to calculate the change in Gibbs Energy if all product and reactant concentrations (pressures) are 1 M (1 atm) and 
Pre Calc
How to solve the equation: 36x15y+50z=10 2x+25y=40 54x5y+30z=160