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Alex_Xolod [135]
3 years ago
14

The perimeter of an equilateral triangle is 12 feet find the area of the triangle

Mathematics
2 answers:
expeople1 [14]3 years ago
5 0

I think your answer would be 6.93...idk. It’s kinda hard...!

myrzilka [38]3 years ago
4 0
I think it’s 6.93 but idk man ‍♀️‍♀️‍♀️
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determine the quadratic function of f whose graph is given. The vertex is (1,-3) and the y-intercept is -2
LuckyWell [14K]
Hmmm the y-intercept is at -2?  what does that mean?  well, is where the graph "intercepts" or touches the y-axis, and when that happens, x = 0, so the point is really ( 0 , -2 ).

and we know where the vertex is at.  Let's assume a vertical parabola, in which case the squared variable is the "x".

\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad  vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
vertex
\begin{cases}
h=1\\
k=-3
\end{cases}\implies y=a(x-1)^2-3
\\\\\\
\textit{now, we also know that }
\begin{cases}
x=0\\
y=-2
\end{cases}\implies -2=a(0-1)^2-3
\\\\\\
1=a(-1)^2\implies \boxed{1=a}\qquad thus\implies 
\begin{cases}
y=1(x-1)^2-3\\
\textit{or just}\\
y=(x-1)^2-3
\end{cases}
6 0
3 years ago
How to simplify -3 (4×-5y-5×)
VMariaS [17]
Distribute -3 to the rest of the numbers by multiplying them together. That’s all you need to do you don’t have to solve
6 0
3 years ago
Read 2 more answers
Solve for x<br> please help !!
kati45 [8]

Answer:

34

Step-by-step explanation:

j

8 0
3 years ago
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A bag contains 39 colored marbles. There are six blue marbles, 14 red marbles, eight yellow marbles, and 11 clear marbles. What
Assoli18 [71]

Answer:

6 to 10 or 6/10

Step-by-step explanation:

5 0
2 years ago
N-4=16 solve equation
gizmo_the_mogwai [7]

n - 4 = 16   Given

  + 4  + 4   Cancel out 4 to isolate n variable

n = 20

Prove.

20 - 4 = 16

16 = 16

True.

6 0
2 years ago
Read 2 more answers
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