Celine is knitting a scarf. The finished length will be 1.2 meters. So far she has knitted 0.8 meters. How many more meter does
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Simplify the ration expression
start by seeing if anything in the numerator or denominator can be factored,
you should notice that you can factor out a 3 from 3x-6 in the numerator
when you do so, the result is
now, since there is an x-2 in the numerator and denominator, they "cancel" out since
however, only when
since
when you cancel out the x-2, you're left with 3
hence, your answer is C
start by seeing if anything in the numerator or denominator can be factored,
you should notice that you can factor out a 3 from 3x-6 in the numerator
when you do so, the result is
now, since there is an x-2 in the numerator and denominator, they "cancel" out since
however, only when
since
when you cancel out the x-2, you're left with 3
hence, your answer is C
We know that the points at which the parabola intersects the x axis are
(-5,0) and (1,0)
So the extent between these two points would be the base of the triangle
lets find the length of the base using the distance formula
the base b=6
We will get the height of the triangle when we put x=0 in the equation
y=a(0+5)(0-1)
y=-5a
so height = -5a (we take +5a since it is the height)
We know that the area of the triangle =
× 6 × (5a) = 12
15a=12
a=