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yanalaym [24]
3 years ago
10

Ellen takes a multiple-choice quiz that has 5 questions, with 4 answer choices for each question. What is the probability that s

he will get at least 2 answers correct by guessing?
Mathematics
1 answer:
ruslelena [56]3 years ago
6 0
So get the probability of Ellen that she get at least 2 correct answer by guessing in a quiz that has 4 multiple choices and based on my calculation and analyzing the problem i came up with a solution and got an answer of 0.367, I hope you are satisfied with my answer
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I NEED HELP PLEASE !!!! :(
Triss [41]

Answer:

6

Step-by-step explanation:

(2)/((6)√(8))*√(2)-((18)/√81))-2)

(6)sqrt√8 = 6sqrt √2³= 2^3/6=2^1/2= √2

(2√2)/√2 -(-18/√9²)-2)

2-(-18/9 -2)

2-(-2-2)=2+4=6

4 0
3 years ago
Find the general solution of the following equation: y'(t) = 3y -5
Anton [14]

Answer:

The general solution of the equation is y = \frac{A}{3}e^{3t} + 5

Step-by-step explanation:

Since the differential equation is given as y'(t) = 3y -5

The differential equation is re-written as

dy/dt = 3y - 5

separating the variables, we have

dy/(3y - 5) = dt

dy/(3y - 5) = dt

integrating both sides, we have

∫dy/(3y - 5) = ∫dt

∫3dy/[3(3y - 5)] = ∫dt

(1/3)∫3dy/(3y - 5) = ∫dt

(1/3)㏑(3y - 5) = t + C

㏑(3y - 5) = 3t + 3C

taking exponents of both sides, we have

exp[㏑(3y - 5)] = exp(3t + 3C)

3y - 5 = e^{3t}e^{3C}        

3y - 5 = Ae^{3t}                A = e^{3C}

3y = Ae^{3t} + 5    

dividing through by 3, we have

y = \frac{A}{3}e^{3t} + 5

So, the general solution of the equation is y = \frac{A}{3}e^{3t} + 5

3 0
4 years ago
Write a function to describe the following scenario. A baseball stadium sells a slushy cup for $5 and $1 for every time you fill
deff fn [24]

Answer:

x is amount of times your refil it

x+5

Hope This Helps!!!

6 0
2 years ago
3x+25=85 would x= 20 or 180
defon
Umm Sir, the answer would be as follows: 3x+25=85
                                                                       -25 -25
                                                                       3x=60
                                                                       /3   /3
                                                                        x=20
6 0
3 years ago
Read 2 more answers
6 x 6 x 6 x 6 x 6 x 7 x 1 x 7 x 9 = ???
tekilochka [14]

Answer:

3429216

Step-by-step explanation:

Your question might be deleted

3 0
3 years ago
Read 2 more answers
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