Answer:
the answer is the first one. i just did it and double checked
Step-by-step explanation:
The answer is £287.98 is the correct answer
Step-by-step explanation:
P(-1,1), Q(2,3), R(2,1)
Let P(-1,1)be x1and y1
Q(2,3)be x2 and y2
therefore, by distance formula
d(PQ)= root (x2-x1)^2+(y2-y1)^2
= root[ 2-(-1)] + (3-1)
=root (2+1)^2+2^2
= root (3square +2square )
= root 9+4
d( PQ) = root 13.........(1)
Now find distance QR and PR then prove that the three sides are not equal and therefore it is a scalene triangle
2nd also do the same.
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An equation in standard form of the given ellipse is; x²/9 + y²/36 = 1
<h3>How to find the equation of an ellipse?</h3>
We know that the general standard form of equation of an Ellipse is;
x²/a² + y²/b² = 1
where;
a is the vertex and b is the co-vertex.
Thus, the equation here is;
x²/3² + y²/(-6)² = 1
⇒ x²/9 + y²/36 = 1
Read more about Ellipse Equation at; brainly.com/question/10259559
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