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statuscvo [17]
3 years ago
5

What is the mean mark of 847 ÷ 30?​

Mathematics
1 answer:
user100 [1]3 years ago
8 0

Answer:

Step-by-step explanation:

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Suzanne drives 180 miles in 3 hours. What is her average speed in miles per hour?
Nana76 [90]

Answer: 180 miles x 3 hours = 540

540/2 = 270

270 is the average speed

Step-by-step explanation:

7 0
2 years ago
Find center,foci, and vertices of ellipse (x+3)^2/21+(y-5)^2/25=1
sasho [114]
I don't know if we can find the foci of this ellipse, but we can find the centre and the vertices. First of all, let us state the standard equation of an ellipse. 

(If there is a way to solve for the foci of this ellipse, please let me know! I am learning this stuff currently.) 

\frac{(x-x_{1})^2}{a^2}+ \frac{(y-y_{1})^2}{b^2}=1

Where (x_{1},y_{1}) is the centre of the ellipse. Just by looking at your equation right away, we can tell that the centre of the ellipse is: 

(-3,5)

Now to find the vertices, we must first remember that the vertices of an ellipse are on the major axis. 

The major axis in this case is that of the y-axis. In other words, 

b^2>a^2 

So we know that b=5 from your equation given. The vertices are 5 away from the centre, so we find that the vertices of your ellipse are: 

(-3,10)
 & (-3,0)

I really hope this helped you! (Partially because I spent a lot of time on this lol) 

Sincerely,

~Cam943, Junior Moderator
6 0
4 years ago
Help please!!! I need it!
Grace [21]

Answer:

1300.62

Step-by-step explanation:

thank me later lolol.

8 0
3 years ago
Find the area of the circle with a diameter of 6cm.
VikaD [51]

Answer:

the area is 28.27

Step-by-step explanation:

6 0
3 years ago
Select the table that represents a linear function.
nexus9112 [7]
The correct answer is b




a thanks and a brainliest would be appreciated :)


4 0
3 years ago
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