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natita [175]
3 years ago
12

What is the probability that 6 rolls of a fair die will show four exactly 5 times?

Mathematics
1 answer:
storchak [24]3 years ago
6 0

Answer:

very less

Step-by-step explanation:

When rolling a fair 6 sided die 5 times there are 6^5 possible combinations.

Of those, there are 5 ways to roll exactly four sixes, and each of those ways have 5 possible results on the die which has not rolled a six, plus there is 1 way to roll five sixes. 5*5+1=26 combinations with at least four sixes.

Now, take the number of results which fit your conditions, divide by the number of possible results and you get your answer: 26/7776 which can be reduced to 13/3338, a bit less than 0.4%

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PLZ HELP QUICK Which property explains why these two expressions are equal - the commutative, the associative, or distributive p
r-ruslan [8.4K]

Answer:

I think it's commutative. ;-;

Step-by-step explanation:

4 0
3 years ago
4(3x + 2) - 5(6x - 1) = 2(x-8) - 6(7x - 4)​
djverab [1.8K]

Answer:

12x+8-30x+5=2x-16-42x+24

-18x+13=-40x+8

22x=-5

x=-5/22

hopefully i did it with out mistakes

7 0
3 years ago
Factorise x²+8x+12plz give answer ​
larisa86 [58]

Answer:

(x+6)(x+2)

Step-by-step explanation:

we have

ax²+bx+c

To factor parabolas we need to find a number that adds to b (or 8) and mulitplies to a*c (or 12)

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(x+6)(x+2)

7 0
3 years ago
Read 2 more answers
Please Help!
NNADVOKAT [17]
If you would like to know how much is the stock worth now, you can calculate this using the following steps:

1 year: 6 1/2 % of $875 = 6.5% * $875 = 6.5/100 * 875 = $56.875
$875 + $56.875 = $931.875
2 year: 6 1/2 % of $931.875 = 6.5% * $931.875 = 6.5/100 * 931.875 = $60.572
$931.875 + $60.572 = $992.447
3 year: 6 1/2 % of $992.447 = 6.5% * $992.447 = 6.5/100 * 992.447 = $64.509
$992.447 + $64.509 = $1056.956 = $1056.96 = $1057

The correct result would be: The stock is worth $1057 now.
3 0
4 years ago
What is the domain function y=^4sqrtx-1
Rudik [331]

Answer:

Domain of y=\sqrt[4]{x-1}: is x>=1

Interval notation: [1,∞)

Step-by-step explanation:

We have y=\sqrt[4]{x-1}

1) The domain of a function is the set of x values for which the function is real and defined.

2) So, x-1 should be positive means x-1>=0, because fourth root of any negative value would be a complex number and not a real number.

3) Now we solve the inequality x-1>=0

4) Adding 1 to both sides of the inequality we get,

x-1+1 > = 0+1

5) Cancel out -1 and +1 from the left side

6) We get x>=1

It concludes that for the domain of the given function, the x value must be greater than or equal to 1

7 0
3 years ago
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