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2 years ago

8

A family has five children. The probability of having a girl is 1/2. What is the probability of having 3 girls followed by 2 boy

s?

1 answer:

erik [133]2 years ago

5 0

Answer:

5 1/2

Step-by-step explanation:

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Let Upper A equals left bracket Start 2 By 2 Matrix 1st Row 1st Column negative 2 2nd Column 4 2nd Row 1st Column 1 2nd Column 3

vagabundo [1.1K]

Answer:

not

Step-by-step explanation:

$\left[\begin{array}{ccc}-2&4\\1&3\end{array}\right] *\left[\begin{array}{ccc}-2&1\\3&7\end{array}\right]=$

First is A and Second is B

Let's find A*B

$\left[\begin{array}{ccc}-2(-2)+4*3&-2*1+4*7\\1(-2)+3*3&1*1+3*7\end{array}\right] =\left[\begin{array}{ccc}16&26\\7&22\end{array}\right]$

b)

$\left[\begin{array}{ccc}-2&1\\3&7\end{array}\right] \left[\begin{array}{ccc}-2&4\\1&3\end{array}\right] =$

Now let's find B*A

$\left[\begin{array}{ccc}-2(-2)+1*1&-2*4+1*3\\3(-2)+7*1&3*4+7*3\end{array}\right] =\left[\begin{array}{ccc}5&-5\\1&23\end{array}\right]$

c) They are not

7 0

2 years ago

Please answer this ASAP

Amanda [17]

Answer: 2x and y= 4+

Step-by-step explanation:

x = 2 times 2 and so on....

y = 4 plus 4 plus 4 etc....

3 0

2 years ago

Can someone answer this question for me ?

arsen [322]

Answer:

I believe the answer is 3/10

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2 years ago

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Cos2x + sin2 x =______

Alenkasestr [34]

Cos²(x) + sin²(x)
¹/₂[1 - cos(2x)] + ¹/₂[1 + cos(2x)]
[¹/₂ - ¹/₂cos(2x)] + [¹/₂ + ¹/₂cos(2x)]
¹/₂ + ¹/₂ - ¹/₂cos(2x) + ¹/₂cos(2x)
1

8 0

2 years ago

1. Trey bought a puzzle priced at $12 and a

Mazyrski [523]

Answer:

$28.08

Step-by-step explanation:

104%×12+104%×15

=$28.08

Hope this helps!!!

7 0

2 years ago

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