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boyakko [2]
3 years ago
10

In need of help , can someone please help ?

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
6 0
He final number is 5 times the original number

emmainna [20.7K]3 years ago
5 0

the answer is C.

I multiply 5x30 then I got 150 then I divided by 5 and I got 30 then I subtract 30-6 and got 24

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Find the equation of a parabola that has a vertex of (-2,-3) and contains the point (4,1)
sweet [91]
\bf ~~~~~~\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~~(\stackrel{-2}{ h},\stackrel{-3}{ k})\\\\
-------------------------------\\\\
\begin{cases}
h=-2\\
k=-3
\end{cases}\implies y=a[x-(-2)]^2-3\implies y=a(x+2)^2-3
\\\\\\
\textit{we also know that }
\begin{cases}
x=4\\
y=1
\end{cases}\implies 1=a(4+2)^2-3
\\\\\\
4=36a\implies \cfrac{4}{36}=a\implies \cfrac{1}{9}=a
\\\\\\
therefore\qquad \boxed{y=\cfrac{1}{9}(x+2)^2-3}
 
\bf y=\cfrac{1}{9}(x+2)^2-3\implies y=\cfrac{1}{9}(x^2+4x+4)-3
\\\\\\
y=\cfrac{1}{9}x^2+\cfrac{4}{9}x+\cfrac{4}{9}-3\implies \stackrel{standard~form}{y=\cfrac{1}{9}x^2+\cfrac{4}{9}x-\cfrac{23}{9}}
5 0
3 years ago
Find the area of the Triangle b = 18 h = 6
Nitella [24]

Answer:

54

Step-by-step explanation:

Use the Area of Triangle formula A=HB divided by 2

4 0
3 years ago
Black friday sale on TVs were 50 in tv for $148.00 or 65 in for $199.00 which is the better buy this is not worth a grade just s
MrMuchimi

Answer:

i personally think the 65 in. one

Step-by-step explanation:

4 0
2 years ago
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