Sunday
May 19, 2013

Posts by Rocky

Total # Posts: 70

intermediate algebra
rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero. [3}^-4 --- ua^2}

intermediate algebra
Solve using the elimination method. Show all work. If the system has no solution or an infinite number of solutions, state this. 3x+7y=77 -2x+7y=42

intermediate algebra
Solve uing the subtitution method. Show your work. If the system has no solution or an infinite number of solutions, stat this,3x-15y=-12 3x+24y=-12

intermediate algebra
if a stone is tossed from the top of a 310 meter building, the height of the stone as a function of time is given by h(t)=-9.8t^2-10t+310. where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth's...

intermediate algebra
In solving the equation (x-1)(x+2)=30. Eric stated that the solution would be x-1=30¨T¡úx=31 or(x-2)¨T30¨T¡úx=32 However, at least on of these solutions fails to work when subsitituted back into the orignal equation. Why is that? Please he...

intermediate algebra
compleletly factor the following expression 9y^2-16z^2

intermediate algebra
factor out the greatest common factor from the expression 6x^3yz^4-3x^2y^3z^4-18^4y^2z^3

intermediate algebra
factor out the greatest common factor from the expression 24xyz^2+20x^2yz-4x^2z^2

intermediate algebra
completely factor the expression 150x^2-420xy+294y^2

algebra
factor the expression a^2-6ab+9b^2 into a product of binomials

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