3927283+8093 Help pls
2 answers:
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Answer:
Step-by-step explanation:
<em>See Attachment for complete question</em>
To determine which of the options has (-4,2) as its solution; we have to test each linear combination until we arrive at an answer;
Given that
Testing Option A
Substitute and
in
Open Brackets
Substitute and
in
Open Brackets
<em>In both cases, the expression on the right hand side equates to that on the left hand side; </em>
<em>Hence, there's no need to check for other options. </em>
Given => PQ = 9 unit
PR = 7 unit
QR = 8 unit
To find => Area of triangle PQR
We can find area of triangle by Heron's Formula.
Where,
s = (9+7+8)/3
= 24/3
= 8
and,
a = 9
b = 7
c = 8
Heron's Formula =
=
=
=
=
Area of triangle = 2i√2 units
Hope this helps!
PR = 7 unit
QR = 8 unit
To find => Area of triangle PQR
We can find area of triangle by Heron's Formula.
Where,
s = (9+7+8)/3
= 24/3
= 8
and,
a = 9
b = 7
c = 8
Heron's Formula =
=
=
=
=
Area of triangle = 2i√2 units
Hope this helps!