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olchik [2.2K]
3 years ago
11

See your levels

Mathematics
1 answer:
Talja [164]3 years ago
5 0
Tristan’s is dk Oz Oz em on u e acc what
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The most popular mathematician in the world is throwing aparty for all of his friends. As a way to kick things off, they decidet
ratelena [41]

Answer:

The no. of possible handshakes takes place are 45.

Step-by-step explanation:

Given : There are 10 people in the party .

To Find: Assuming all 10 people at the party each shake hands with every other person (but not themselves, obviously) exactly once, how many handshakes take place?

Solution:

We are given that there are 10 people in the party

No. of people involved in one handshake = 2

To find the no. of possible handshakes between 10 people we will use combination over here

Formula : ^nC_r=\frac{n!}{r!(n-r)!}

n = 10

r= 2

Substitute the values in the formula

^{10}C_{2}=\frac{10!}{2!(10-2)!}

^{10}C_{2}=\frac{10!}{2!(8)!}

^{10}C_{2}=\frac{10 \times 9 \times 8!}{2!(8)!}

^{10}C_{2}=\frac{10 \times 9 }{2 \times 1}

^{10}C_{2}=45

No. of possible handshakes are 45

Hence The no. of possible handshakes takes place are 45.

4 0
3 years ago
6.3-2(1.5c+4.1) algebraic expressions
vagabundo [1.1K]

Below is step-by-step in how i got my answer.<span>6.3−<span>2<span>(<span><span>1.5c</span>+4.1</span>)</span></span></span>Distribute:<span>=<span><span>6.3+<span><span>(<span>−2</span>)</span><span>(<span>1.5c</span>)</span></span></span>+<span><span>(<span>−2</span>)</span><span>(4.1)</span></span></span></span><span>=<span><span><span><span>6.3+</span>−<span>3c</span></span>+</span>−8.2</span></span>Combine Like Terms:<span>=<span><span>6.3+<span>−<span>3c</span></span></span>+<span>−8.2</span></span></span><span>=<span><span>(<span>−<span>3c</span></span>)</span>+<span>(<span>6.3+<span>−8.2</span></span>)</span></span></span><span>=<span><span>−<span>3c</span></span>+<span>−1.9</span></span></span><span>Your answer is in Bold
~Good Luck~</span>
6 0
3 years ago
It takes 65 inches of ribbon to make a bow and wrap a ribbon around the box. The bow takes 30 inches of ribbon. The width of the
damaskus [11]

ok so the bow and the width of the box takes 42 inches of ribbon so you have 23 inches of ribbon left. take away another 12 inches for the other side of the box then you have 11 inches of ribbon left. so it takes 5 1/2 inches of ribbon to do the height on each side of the box

hope this helps my queen <3 :) ❤❤❤❤❤

3 0
3 years ago
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Pleaseeee help!!!! I will mark you as brainlinest for correct answer!!!!!!!!
marta [7]
I think the correct answer for that question is C
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Solve 3-3x &lt; -5<br><br> The answer has form <br> x&gt;A<br> x&lt; A<br> Where A=
kvv77 [185]
This is bs Tooo HARD
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