© Gavin, Colin and Dan share some sweets in the ratio 4:5:3. Gavin gets 20 sweets. How
1 answer:
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Make equal to 0
minus 12from both sides
x^2+10x+13=0
we can't factor so use quadratic formula
x=
x=
x=
x=
x=
x=
x=
or 
aprox
x=-1.5359 or -8.4641
minus 12from both sides
x^2+10x+13=0
we can't factor so use quadratic formula
x=
x=
x=
x=
x=
x=
x=
aprox
x=-1.5359 or -8.4641
Check the pictures below.
make sure your calculator is in Degree mode, since the angles are in degrees.
make sure your calculator is in Degree mode, since the angles are in degrees.