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Sergeu [11.5K]
3 years ago
15

I'm so incredibly confused on this. I will give brainliest for the correct answer.

Mathematics
1 answer:
o-na [289]3 years ago
4 0
Hey!!

here is your answer >>>

The interior angle A measures 77°

The exterior angle measures 130°

The sum of angles A and B is 130°

Yes, it's true, this a property of the triangle, the last question is 'true'

Hope my answer helps!
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What is the probability that a randomly selected house with 2 bathrooms has 3 bedrooms?
coldgirl [10]
From the table there is 24 houses with 2 bathrooms and 3 bedrooms

there is a total of 30 houses with 2 bathrooms

 the probability is 24 /30 = 0.8

7 0
3 years ago
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Betty bought a package of meat that weighed 2 1/2 and another package that weighed 1 3/4 how much meat did she buy all together 
MAVERICK [17]
Betty bought 4 1/4 lbs of meat all together
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3 years ago
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Write an equation for an ellipse centered at the origin, which has foci at (\pm\sqrt{8},0)(± 8 ​ ,0)(, plus minus, square root o
Alchen [17]

Answer:

The equation of ellipse centered at the origin

\frac{x^2}{18} +\frac{y^2}{10} =1

Step-by-step explanation:

given the foci of ellipse (±√8,0) and c0-vertices are (0,±√10)

The foci are (-C,0) and (C ,0)

Given data (±√8,0)  

the focus has x-coordinates so the focus is  lie on x- axis.

The major axis also lie on x-axis

The minor axis lies on y-axis so c0-vertices are (0,±√10)

given focus C = ae = √8

Given co-vertices ( minor axis) (0,±b) = (0,±√10)

b= √10

The relation between the focus and semi major axes and semi minor axes are c^2=a^2-b^2

      a^{2} = c^{2} +b^{2}

a^{2} = (\sqrt{8} )^{2} +(\sqrt{10} )^{2}

a^{2} =18

a=\sqrt{18}

The equation of ellipse formula

\frac{x^2}{a^2} +\frac{y^2}{b^2} =1

we know that a=\sqrt{18} and b=\sqrt{10}

<u>Final answer:</u>-

<u>The equation of ellipse centered at the origin</u>

<u />\frac{x^2}{18} +\frac{y^2}{10} =1<u />

                                   

8 0
3 years ago
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7 0
2 years ago
Please help asap ill mark you brainliest!!
julia-pushkina [17]

Answer:

4,184.87 square meters

Step-by-step explanation:

let me know if you want to see work . . .

3 0
3 years ago
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