What is the area of this polygon?

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

7 0

all you have to do is add up all the sides and your answer will be 21 cm

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Find the center, vertices, and foci of the ellipse with equation 2x2 + 9y2 = 18.

vova2212 [387]

To solve this problem you must apply the proccedure showb below:

1. You have the following equation:

 2x^2+9y^2=18

2. Dividing the equation by 18, you have:

(x^2/9)+(y^2/2)=1

3. The center is:

[(x-0)^2/9]3^2[(y-0)^2/√2]=1

(h,k)=(0,0)

The center is (0,0)

4. The vertices are:

a^2=9
a=3

Vertices: (-3,0) and (3,0)

5. The foci is:

c^2=a^2-b^2
c=√7

The foci is: (-√7,0) and (√7,0)

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3 years ago

How does water pressure affect a scuba diver ?

enot [183]

Because the gravity is making him fall so it will splash them

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3 years ago

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RIGHT ANSWERS FOR BOTH 2 AND 3 I NEED HELP right answers :(

disa [49]

Answer:

c and a

Step-by-step explanation:

5 0

2 years ago

What are the coordinates of the center of a circle whose equation is (x + 7)2 + (y – 5)2 = 16?

Dafna11 [192]

Hi there! The answer is ( - 7, 5)

The standard form of the equation of a circle is the following:
$(x - a) {}^{2} + (y - b) {}^{2} = r {}^{2}$

In this equation r represents the radius of the circle and the point (a, b) is its centre.

Therefore, the centre of the circle
$(x + 7) {}^{2} + (y - 5) {}^{2} = 16$
is the point ( - 7, 5).

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3 years ago

Conner scored 4,370 points in a game.Amy scored 1,089 fewer points then Conner how many points did Amy scored

statuscvo [17]

SOLUTION:

Connor's score = 4, 370 points

Amy's score = Connor's score - 1, 089

Amy's score = 4, 370 - 1089

Amy's score = 3, 281 points

Therefore, Amy scored 3, 281 points.

Hope this helps! :)
Have a lovely day! <3

3 0

3 years ago