3 years ago

How many different ways can teams of four members be formed from a class of 20?

1 answer:

4 0

Assuming you want to choose 4 people from the class of 20;

Begin by using the combinations formula;

20C4=4845 possibilities

Hope I helped :)

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Find the other endpoint of the line segment with the given endpoint and midpoint.

Shtirlitz [24]

Answer:

endpoint is (29, -13)

Step-by-step explanation:

Formula for midpoint is $(\frac{x_{1} + x_{2} }{2} ,\frac{y_{1} + y_{2} }{2} )$

So, let $(x_{2} , y_{2} )$ be the coordinates of the endpoint you are looking for.

$x_{1} = -9$ and $y_{1} = 7$

$(\frac{-9 + x_{2} }{2} , \frac{7 + y_{2} }{2} )$ = (10, -3)

$\frac{-9 + x_{2} }{2} = 10$ $\frac{7 + y_{2} }{2} = -3$

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3 years ago

Find the circumference of a circle with an area of 289.Round to the nearest tenth.

lorasvet [3.4K]

Answer:I hope this helps c=60.26

Step-by-step explanation:

The area is 289

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