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slamgirl [31]
3 years ago
6

The rectangular piece of property measures 8 mi by 6 mi. find an equation for the ellipse if the path is to touch the center of

the property line on all 4 sides
Mathematics
2 answers:
Artyom0805 [142]3 years ago
8 0
The ellipse will be inscribed in the rectangle.
Because the rectangle measures 8 mi by 6 mi, the ellipse has
a = 8/2 = 4 mi (major axis)
b = 6/2 = 3 mi (minor axis)

The equation for the ellipse is
x^2/a^2 + y^2/b^2 = 1

That is
x^2/4^2 + y^2/3^2 = 1
x^2/16 + y^2/9 = 1

Answer:
x^2/16 + y^2/9 = 1

stiv31 [10]3 years ago
5 0

Answer:

The equation of ellipse is \frac{x^2}{9}+\frac{y^2}{16}=1.

Step-by-step explanation:

Consider the provided information.

The rectangular piece of property measures 8 mi by 6 mi.

It is a vertical ellipse.

So, use the equation: \frac{x^2}{b^2}+\frac{y^2}{a^2}=1

Where the value of a and b are:

a=\frac{8}{2}=4\\b=\frac{6}{2}=3

The major axis is along y-axis with the vertices (0,4) and (0,-4).

The minor axis is along the x-axis, with the vertices (-3,0) and (3,0).

Now substitute the value of a and b in \frac{x^2}{b^2}+\frac{y^2}{a^2}=1

\frac{x^2}{3^2}+\frac{y^2}{4^2}=1

\frac{x^2}{9}+\frac{y^2}{16}=1

Hence, the equation of ellipse is \frac{x^2}{9}+\frac{y^2}{16}=1.

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Answer:

rounded it would be 68.1

4 0
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PLS HELP DUE TODAY
Gekata [30.6K]

Here we go !!

Since it's a regular pentagon, all it's sides are equal so let's solve for x

\hookrightarrow \: 3(x - 1)  = 5x - 6

\hookrightarrow \: 3x - 3 = 5x - 6

\hookrightarrow \:  3x - 5x =  - 6 + 3

\hookrightarrow \:  - 2x =  - 3

\hookrightarrow \: x =  \dfrac{ - 3}{ - 2}

\boxed{\boxed{x =  \dfrac{3}{2} }}

now let's find the measure of each side, i.e

\hookrightarrow \: 5x - 6

\hookrightarrow \: (5 \times  \dfrac{3}{2})  - 6

\hookrightarrow \:  \dfrac{15}{2}   - 6

\hookrightarrow \: 7.5 - 6

\mathrm{\hookrightarrow \: 1.5 \: units}

perimeter = 5 × side length ( for a regular pentagon )

\hookrightarrow \: 1.5 \times 5

\boxed{ \boxed{ \:  \:  \:  \:  \:  \:  \:  \: 7.5 \:  \:  units \:  \:  \:  \:  \:    \:  \:  }}

6 0
3 years ago
Jada, Lin, and Elena are saving money for a trip. Together they saved $120. Jada saved $20 less than Lin. Lin saved 3 times as m
defon

Step-by-step explanation:

This is a word problem that we must translate to mathematical expression before we can solve.

let the individual saving be the first letters of the names

Jada= J

Lin= L

Elena= E

1. Jada saved $20 less than Lin

    J=L-20

2. Lin saved 3 times as much money as Elena

   L= 3E

3. Hence Elena saved

   E

Together they saved $120.

hence

(L-20)+3E+E= 120

L-20+3E+E= 120

collecting like terms we hav

L+4E=120+20

L+4E= 140

but we know that L= 3E

3E+4E= 140

7E= 140

divide both sides by 7 we have

E= 140/7

E= $20

This means Elena saves $70

also  L= 3E

L= 3*20

L= $60

this means that Lean saved $60

also  J=L-20

J= 60-20

J= $40

This means that Jada saved $40

6 0
3 years ago
The area of the square is 100 square centimeters. What is the area of the circle?
Setler79 [48]

length \: of \: 1 \: side = diameter

area \:  =  {l}^{2}  \\ 100 =  {l}^{2}  \\  \sqrt{100}  = l \\ l = 10

diameter = 2 \times radius \\ 10 = 2 \times radius \\ radius = 5

circle \: area = pi \times  {r}^{2}  \\ circle \: area = 3.142 \times  {5}^{2}  \\ circle \: area = 3.142 \times 25 \\ circle \: area = 78.55 {cm}^{2}

6 0
3 years ago
Read 2 more answers
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