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3 years ago

What is the probability of picking 3 people out of 7

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

8 0

$\dfrac{3}{7}$

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Cos3x+cosx=2cos2xcosx

andrew-mc [135]

$cos(3x)+cos(x)=2\cdot cos\left(\dfrac{3x+x}{2}\right)\cdot cos\left(\dfrac{3x-x}{2}\right)=2\cdot cos(2x)\cdot cos(x).$

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8 0

3 years ago

Evaluate: ab+a^2, if a=937 and b=63

34kurt

I think it’s 937,000

5 0

3 years ago

Read 2 more answers

02.07)The figure shows two parallel lines AB and DE cut by the transversals AE and BD:

Delicious77 [7]

Answer:

Triangle

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

PLEASEEEEE HELPPPPP!!!!

Dmitry_Shevchenko [17]

Step One

Find AM

Formula

AM = MN - AN

Givens

MN = 67.2

AN = 32

Solution

AM - 67,2 - 32

AM = 35.2

Step Two

Set up a solution

67.2/35.2 = 81.9/x Cross Muliply

67.2 * x = 81.9 * 35.2 Combine the right

67.2 * x = 2882.88 Divide by 67.2

x = 2882.88/67.2

x = 42.9 Answer

3 0

3 years ago

Sarah scored 68 out of 80 in a test.Write her score as a simplified fraction

attashe74 [19]

$\frac{68}{80} \\ \\ \frac{(4)17}{(4)20} \\ \\ \boxed{ \frac{17}{20}}$

5 0

3 years ago