01/03/13
Subtracting and adding integers
p-positive
n-negative
p+p=
n+n=
p+n=
n+p=
p-p=
n-n=
p-n=
n-p=
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12/30/12
Mark weighs 74 pounds. Together, he and his sister weigh six more pounds than three times the weight of his sister. What is the weight of marks sister?
w= weight of marks sister
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3
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12/30/12
Quadratic equation formula
Question:
Solution of quadratic equation formula, recall if ax^2+bx+c=0 then x=-b±√b^2-4ac/2a
Use the quadratic formula to solve
x+2/4+3/x-1=7
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