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soldier1979 [14.2K]
3 years ago
11

A. Line a B. Line b C. Line c D. Line d

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
7 0
C. Line c

because it splits the triangle in half.
kotykmax [81]3 years ago
4 0
A line of symmetry is  where you can put a line through an object, fold it on that line and it would be the same on both sides.  With this triangle it would need to be divided vertically  in half therefore it is line c
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I hope this helps you




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(x-3)^2-21=0


(x-3)^2=21
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Sam owes the bank a little less than $40$40. Which choice could be his balance?
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so the sun is one of the foci, and we have an eccentricity of 0.97. So the ellipse will look more or less like the picture below.


\bf \textit{ellipse, horizontal major axis}\\\\\cfrac{(x- h)^2}{ a^2}+\cfrac{(y- k)^2}{ b^2}=1\qquad \begin{cases}center\ ( h, k)\\vertices\ ( h\pm a,  k)\\c=\textit{distance from}\\\qquad \textit{center to foci}\\\qquad \sqrt{ a ^2- b ^2}\\eccentricity\quad e=\cfrac{c}{a}\end{cases}\\\\-------------------------------\\\\\begin{cases}h=0\\k=0\\a=35.88\\e=0.97\end{cases}\implies \cfrac{(x-0)^2}{35.88^2}+\cfrac{(y-0)^2}{b^2}=1\\\\-------------------------------


\bf e=\cfrac{c}{a}\implies 0.97=\cfrac{c}{35.88}\implies \boxed{34.8036=c} \\\\\\ c=\sqrt{a^2-b^2}\implies b=\sqrt{a^2-c^2}\implies b=\sqrt{35.88^2-34.8036^2} \\\\\\ \boxed{b\approx 8.72}\\\\ -------------------------------\\\\ \cfrac{(x-0)^2}{35.88^2}+\cfrac{(y-0)^2}{8.72^2}=1\implies \cfrac{x^2}{1287.3744}+\cfrac{y^2}{76.0384}=1

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4 years ago
Help its for someone!!​
yawa3891 [41]

Answer:

b 17/18

Step-by-step explanation:

Solve the one's in bracket then later solve everything together

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