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lesya [120]
4 years ago
15

The

Mathematics
2 answers:
nataly862011 [7]4 years ago
5 0
Im confused so yea...
pochemuha4 years ago
4 0

Answer:

What are you saying?

Step-by-step explanation:

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Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2
r-ruslan [8.4K]

Answer:

The value of given expression is \frac{21}{128}.

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

q=1-p=1-\frac{1}{2}=\frac{1}{2}

The given expression is

C(n,x)p^xq^{n-x}

It can be written as

^nC_xp^xq^{n-x}

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}

\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}

\frac{7!}{2!5!}(\frac{1}{2})^{2+5}

\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}

21(\frac{1}{2})^{7}

\frac{21}{128}

Therefore the value of given expression is \frac{21}{128}.

7 0
3 years ago
Write an equivalent expression using the commutative property of multiplication. <br> 5 x (2 x 6) =
GaryK [48]

Answer:

2 x (5 x 6)

Step-by-step explanation:

When you switch the order around this way it comes out the same

5 x (2 x 6) -> 5 x (12) -> 60

2 x (5 x 6) -> 2 x (30)-> 60

7 0
3 years ago
PLEASE SOMEONE HELP MEEEEEEEEEEEEEEEEEEEE
Sever21 [200]

Answer:

A

Step-by-step explanation:

Formula for Volume: <em>L x W x H</em>

The length of the base, is 10 in.

width is 1.7 in.

height is 20 in.

Then, you simply multiply them all by together

10 x 20 = 200

(I did these first because it is more simple)

Then, 200 x 1.7 = 340

The exponent for volume must always be ^3 because there is 3 measurements required to find the volume. So the answer is A

Hope this helps!!

-Ketifa

4 0
3 years ago
Complete the chart :)
Fofino [41]

Answer: here's the answer in the picture. hope this helps. God bless you. can i get brainliest??

3 0
3 years ago
Read 2 more answers
I Need Help Plz Geometry Is Hard Online
Oduvanchick [21]

Answer:

DE

Step-by-Step Explanation:

Parallel means side by side and having the same distance continuously between them, i.e, the two L's in parallel are parallel

6 0
4 years ago
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