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Ad libitum [116K]
3 years ago
5

It takes 7 hours for 12 men to paint a room.

Mathematics
2 answers:
finlep [7]3 years ago
8 0

Answer:

28 men will be needed for three hours.

Step-by-step explanation:

7 hours --- 12 men

1 hour --- (12 * 7) 84 hours

3 hours --- (84/3) = 28 hours

Thenks and mark me brainliest :)))

mina [271]3 years ago
4 0

Answer:

28(brainlestplzzzzzzzzzzzzzzz)

Step-by-step explanation:

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Let z be a bernoulli random variable with parameter p and w an independent binomial random variable with parameters n and p. Wha
Maurinko [17]

Answer:

It is known that if Z is a binomial random variable with parameters n  and p and in addition, W is a binomial random variable, independent of X, with parameters m and p, it is assumed that the variable R = Z + W, is a binomial random variable with parameters (n + m and p. In this case, m = 1. Therefore, R is a binomial random variable with parameters (n + 1) and p.

Step-by-step explanation:

4 0
3 years ago
Rebecca is playing a video game that involves planting and cutting down trees. She moves up an energy level for each tree she pl
monitta

Answer:

1. I'm not sure of this one so look up "How to write an expression using only addition with numbers" or something like that. 2. after turn one she will have -2 points  3. after turn 2 she will have 6 points 4. after turn 3 she will have 5 points. She will not earn bonus points after turn three because she didn't reach over ten points.

Step-by-step explanation:

4 0
2 years ago
Telephone calls arrive at the Global Airline reservation office in Louisville according to a Poisson distribution with a mean of
Lubov Fominskaja [6]

Answer:

The answer is "0.6227 and 0.5971".

Step-by-step explanation:

\to p(x\leq 2)=p(0)+p(1)+p(2)

                  =e^{-2.2}(1+2.2^{1}+\frac{2.2^2}{2!})\\\\=0.6227

\to x \sim emp(\frac{1}{2.2})\\\\\to f(x)=\frac{1}{2.2} emp1-\frac{x}{2.2}

\to p(x \leq 2)=\int^{2}_{0} \frac{1}{2.2} emp1(-\frac{x}{2.2}\ dx

                  =1-emp1-2|2.2\\\\=0.5971

7 0
3 years ago
In the same amount of time, James drove twice as far as Roger. Altogether, James and Roger drove 90km. Find the number of kilome
miskamm [114]

Answer:

james drove 60 and roger drove 30

Step-by-step explanation:

90/3= 30= roger

90/3=30x2=60= james

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8 0
2 years ago
I️ have to use 15 as Y
statuscvo [17]
-1/5of 15 =-3 then add 3 2/5th which is 17/2 so -3+17/2 = 11/2=5 1/2
7 0
3 years ago
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