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Rama09 [41]
3 years ago
11

Help !! what is the expected value for the binomial distribution below ?

Mathematics
1 answer:
Ierofanga [76]3 years ago
4 0

Answer:

4

Step-by-step explanation:

0*(1/3125)+1*(4/625)+2*(32/625)+3*(128/625)+4*(256/625)+5*(1024/3125)

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What is (x − 3)(x − 5) = 35
JulijaS [17]

Answer:

x=10  x=-2

Step-by-step explanation:

(x − 3)(x − 5) = 35

FOIL

x^2 -5x-3x+15 = 35

Combine like terms

x^2 -8x+15 = 35

Subtract 35 from each side

x^2 -8x+15-35 = 35-35

x^2 -8x-20 =0

Factor

What 2 numbers multiply to -20 and add to -8

-10*2 = -20

-10 +2 = -8

(x-10)(x+2) =0

Using the zero product property

x-10 =0  x+2 = 0

x=10  x=-2

6 0
3 years ago
The cost y to rent a tent is proportional to x days. if it costs $56 to rent a tent for 7 days what is the formula
Alona [7]
Probably y = 8x. 56 = 8(7), so that works. Without more data, I couldn't say if it could be something else, so that's what I go with.
4 0
3 years ago
What is 33.61111111 in fraction form
madreJ [45]

The correct answer is:   " \frac{33,611}{1,000} " .

____________________

<u>Step-by-step explanation</u>:

Based on the assumption that the "1" repeats infinitely; in the given value:

  " 33.61111111 ...." ;

_______

Note that the "611" ; after the decimal point;  this goes to the "thousandths";  

place (is "3 (three) digits long.").

_______

As such; we rewrite the number as:

_______

" \frac{33.611}{1} " ;  

and we multiply BOTH the "numerator" And the "denominator" by: "1000" :

_______

  →  " \frac{(33.611)*(1000)}{(1)*(1000)} " ;

to get:

  →  " \frac{33611}{1000} " ;  →  which cannot be reduced any further.

_______

The correct answer is: " \frac{33,611}{1,000} " .

_______

Hope this is helpful to you!

 Wishing you the best!

_______

7 0
3 years ago
Maria is 12 years older than Jose. In 9 years Maria will be twice as old as Jose.
Stella [2.4K]
I would have to say
Maria is 21
Jose 9
If Maria was 12 and Jose wasn’t born yet look at their ages in nine years.
Hope this helped.
5 0
3 years ago
Fiona, Dan and Stephen share £66 in a ratio 1:3:2. How much money does each person get?
FinnZ [79.3K]

Answer:

£11, £33, £22

Step-by-step explanation:

F:D:S= 1:3:2

  • x+3x+2x= 66
  • 6x=66
  • x= £11

Fiona  £11

Dan £33

Stephen £22

4 0
3 years ago
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