Please help me asap!!

Mathematics

1 answer:

zzz [600]3 years ago

4 0

Answer:

Step-by-step explanation:

An isosceles triangle needs to have 2 congruent sides to be considered a isosceles triangle. To find the length of AB use Pythagorean theorem :

a^2+b^2=c^2

substitute the triangle's lengths which are given and you get:

3^2 + 3 ^2= c^2

simplify and you get

c= √18

Repeat for AC and you get the same thing: √18.

AB=AC=√18. The triangle is an isosceles triangle because you have 2 congruent sides.

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$\bf \begin{cases} x=-1\implies &x+1=0\\ x=3\implies &x-3=0 \end{cases}~\hspace{5em}\stackrel{\textit{even multiplicity}}{(x+1)^2}\qquad \stackrel{\textit{odd multiplicity}}{(x-3)^1}=\stackrel{y}{0} \\\\\\ (x^2+2x+1)(x-3)=y\implies x^3+2x^2+x-3x^2-6x-3=y \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill x^3-x^2-5x-3=y~\hfill$