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Mice21 [21]
3 years ago
10

The graph of an ellipse is shown.

Mathematics
2 answers:
Maru [420]3 years ago
8 0

Answer:

D. y²/25 + x²/4 = 1

Step-by-step explanation:

Ellipse has a general equation of \frac{x^{2} }{a^{2} } +\frac{y^{2} }{b^{2} }=1

We can see that the ellipse is stretched to 5 space in the y-axis. So our b-value is 5 giving us:

\frac{y^{2} }{b^{2}}=\frac{y^{2} }{5^{2}}=\frac{y^{2} }{25}

Then we also see that the ellipse is stretched 2 space in the x-axis, so our a-value is 2 giving us:

\frac{x^{2} }{a^{2}}=\frac{x^{2} }{2^{2} }=\frac{x^{2} }{4}

put the two together and we get

\frac{x^{2} }{4}+\frac{y^{2} }{25}=1

Orlov [11]3 years ago
4 0
The answer is D. Good luck
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Mademuasel [1]
The correct answer is:  [B]:  "40 yd² " .
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First, find the area of the triangle:

The formula of the area of a triangle, "A":

A = (1/2) * b * h ; 

in which:  " A = area (in units 'squared') ;  in our case, " yd² " ; 

                 " b = base length" = 6 yd.  

                 " h = perpendicular height" = "(4 yd + 4 yd)" = 8 yd.
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→  A = (1/2) * b * h = (1/2) * (6 yd) * (8 yd) = (1/2) * (6) * (8) * (yd²) ; 
                                                                 
                                                                   =  " 24 yd² " .
___________________________________________________
Now, find the area, "A", of the square:

The formula for the area, "A" of a square:

   A = s² ;

in which:  "A = area (in "units squared") ; in our case, " yd² " ;
                 
                 "s = side length (since a 'square' has all FOUR (4) equal side lengths);

 A = s²  = (4 yd)² = 4² * yd² =  "16 yd² "
_________________________________________________
Now, we add the areas of BOTH the triangle AND the square:
_________________________________________________
        →  " 24 yd²  +  16 yd² " ; 

to get:  " 40 yd² " ;  which is:  Answer choice:  [B]:  " 40 yd² " .
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4 0
4 years ago
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laila [671]

Answer:

518

Step-by-step explanation:

14 x 74 = 1036      1036 / 2  = 518

( really need brainliest , hope it helps )

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6 0
3 years ago
Jesse buys a necklace that is on sale for 25% off the original price is 119.50 if tax is 7% what is the total price that Jesse w
trapecia [35]

Answer:

$95.89875

Step-by-step explanation:

The original price of the necklace is 119.5. And we are subtracting 25% from this. 119.5 - 25% = 119.5 - 1/4 since 25% is 25/100 which is also 1/4.

So without tax, the price of the necklace is 119.5 - 29.875 which is 89.625.

The tax is 7%. So we should add 89.625 to 7%. This is complicated, but it should result in 95.89875.

If we round this to the nearest cent, it should be <em>$95.9</em>.

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Fittoniya [83]
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The answer is 6.35. Because you put in 254 / 40 and it says 6.35.

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3 years ago
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