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kipiarov [429]
3 years ago
10

Need help due today will give brainiest and the first of a string of questions just like this one PLZ SHOW WORK NEEDED TO TURN I

N ASSINGMENT

Mathematics
1 answer:
sleet_krkn [62]3 years ago
5 0

Answer:

Sorry bro you are going to get it

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Write a rule for the nth term of the geometric sequence if r = 1/4 and a3 = 2.
GarryVolchara [31]

Answer:

a_{n} = 32(\frac{1}{4})^{n-1}

Step-by-step explanation:

The nth term of a geometric sequence is given by the following equation.

a_{n+1} = ra_{n}

In which r is the common ratio.

This can be expanded for the nth term in the following way:

a_{n} = a_{1}r^{n-1}

In which a_{1} is the first term.

This means that for example:

a_{3} = a_{1}r^{3-1}

So

a_{3} = a_{1}r^{2}

2 = a_{1}(\frac{1}{4})^{2}

2 = \frac{a_{1}}{16}

a_{1} = 32

Then

a_{n} = 32(\frac{1}{4})^{n-1}

4 0
3 years ago
Using the statements: If it is Friday, then I will get paid. It is Friday. Write the conclusion
erica [24]
Umm... You will get paid
8 0
3 years ago
Read 2 more answers
C=5p+215 for p the formula c=5p + 215 relates c, the total cost in dollars of hosting a birthday party at a skating rink,to p, t
Nezavi [6.7K]
<span>
it should be 17, people 
</span>
5 0
3 years ago
In a popular tale of wizards and witches, a group of them finds themselves in a room with unmarked doors which change position,
SSSSS [86.1K]

Answer:

Expected number of hours before the the group exits the building = E[Number of hours] = 3.2 hours

Step-by-step explanation:

Expected value, E(X) is given as

E(X) = Σ xᵢpᵢ

xᵢ = each variable

pᵢ = probability of each variable

Let X represent the number of hours before exiting the building taking each door. Note that D = Door

D | X | P(X)

1 | 3.0 | 0.2

2 | 3.5 | 0.1

3 | 5.0 | 0.2

4 | 2.5 | 0.5

E(X) = (3×0.2) + (3.5×0.1) + (5×0.2) + (2.5×0.5) = 3.2 hours

Hope this Helps!!!

7 0
2 years ago
Helppppppp??????!!!!!!!!!!
zzz [600]
I think the answer would be C. (btw, you should charge your phone/tablet, lol)
7 0
3 years ago
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