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Aleks [24]
3 years ago
7

A fair spinner is divided into 3 equal sections : red blue and green, it is spun 5 times what is the probability of getting red

twice
Mathematics
1 answer:
Sav [38]3 years ago
5 0

Answer:

80/243

or

.329218107

Step-by-step explanation:

This is a binomial distribtuion

THe probability of red= 1/3

the probability of not red= 2/3

Probability of getting exactly 2 reds in 5 spins

{5\choose2}*\frac{1}{3}^2*\frac{2}{3}^3=.329218107

or

80/243

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Elanso [62]

The sum of functions is given as:

(f+g)(x)=f(x)+g(x)

In this case we have:

(f+g)(x)=5x+\sqrt[]{x-1}

The domain of the functions is any number that makes the squared root a real number, then:

\begin{gathered} x-1\ge0 \\ x\ge1 \end{gathered}

Hence the domain of the functions is:

\lbrack1,\infty)

5 0
1 year ago
Evaluate the expression 2/5 divided by 1/5 plus 4/5 divided by 1/3
Anna007 [38]

Answer:

The answer I got is 4 2/5.

Step-by-step explanation: 2/5 divided by 1/5 is 2. 4/5 divided by 1/3 is 2 2/5. 2 plus 2 2/5 is 4 2/5.

6 0
3 years ago
Please help this is so confusing u can have 25 points if u help me
Elina [12.6K]

Step-by-step explanation:

Share 20pounds in the ratio 2:3

Total ratio=2+3=5

2/5×20=8

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Sharing 20pounds in that ratio gives 8pounds:12pounds

Share 15cm in the ratio 1:3

Total ratio=1+4=4

¼×15=3.75

15-3.75=11.25

Sharing 15cm in that ratio gives 3.75:11.25

7 0
3 years ago
Common factors of 60 and 126
KonstantinChe [14]
Common factors of 60 and 126 are:

1, 2, 3, 6

Hope this helps
3 0
3 years ago
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12345 [234]
It's the1st: 4 cm/10 cm because:
4/10 = 2/5 .  and because they have the SAME UNIT (cm)
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3 years ago
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