Mathematics
20.08.2020 18:17
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4) Decide whether triangles ABC and DEC are similar. Explain or show your reasoning
4)
Decide whether triangles ABC and DEC are similar. Explain or show your reasoning
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Decide whether triangles ABC and DEC are similar. Explain or show your reasoning
jack6563
4,9(11 marks)
Facotr
ax^2+bx+c=0
find what 2 number multiply to c and add to b
what 2 numbers multiply to 6 and add to 5
2 and 3
(x+2)(x+3)=0
set to zero
x+2=0
x=-2
x+3=0
x=-3
x=-2 or -3
other one
for ax^2+bx+c=0
x=
we are given
x^2+7x+11=0
a=1
b=7
c=11
sub
x=
x=
x=
x=
or 
ax^2+bx+c=0
find what 2 number multiply to c and add to b
what 2 numbers multiply to 6 and add to 5
2 and 3
(x+2)(x+3)=0
set to zero
x+2=0
x=-2
x+3=0
x=-3
x=-2 or -3
other one
for ax^2+bx+c=0
x=
we are given
x^2+7x+11=0
a=1
b=7
c=11
sub
x=
x=
x=
x=
or
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