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DIA [1.3K]
3 years ago
7

We ask the engineers working on activity A to factor in uncertainty in activity times and to provide better estimates of the act

ivity times. The engineers tell us that activity A takes 2 weeks 25% of the time, 4 weeks 50% of the time and 6 weeks 25% of the time. How long does the project now take to complete (on average)
Mathematics
1 answer:
babymother [125]3 years ago
7 0

Answer:

On average, the project takes 4 weeks to complete.

Step-by-step explanation:

We have these following probabilities:

25% probability that the activity takes 2 weeks.

50% probability that the activity takes 4 weeks.

25% probability that the activity takes 6 weeks.

How long does the project now take to complete (on average)

We multiply each duration by it's probability.

0.25*2 + 0.5*4 + 0.25*6 = 4

On average, the project takes 4 weeks to complete.

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Answer:

Radius of tire=0.58 meter

Step-by-step explanation:

as we know that the

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and it needs to rotate 30 times to cover the street distance of 360 feet

So, the below equation would be used to find the radius of tire in the meters

360/3.28084=30*2*3.14*r

r=0.5824203822 meters

Hence

Radius=0.58 meter

3 0
2 years ago
Put these integers in order from least to greatest.<br> 34, 0, – 17, - 56 , 5
tigry1 [53]

Answer: -56 -17 0 5 34

Step-by-step explanation:

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7 0
2 years ago
Read 2 more answers
Can someone help me with this math problem please and thank you. :-)
jok3333 [9.3K]

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5 0
3 years ago
Can someone help me?
Triss [41]

Answer:

Step-by-step explanation:

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4 0
3 years ago
<img src="https://tex.z-dn.net/?f=z%5E%7B7%7D%3D128i" id="TexFormula1" title="z^{7}=128i" alt="z^{7}=128i" align="absmiddle" cla
abruzzese [7]

If <em>z</em> ⁷ = 128<em>i</em>, then there are 7 complex numbers <em>z</em> that satisfy this equation.

z^7 = 128i = 2^7i = 2^7e^{i\frac\pi2}

\implies z=\sqrt[7]{2^7} e^{i\frac17\left(\frac\pi2+2n\pi\right)}

(where <em>n</em> = 0, 1, 2, …, 6)

\implies z = 2 e^{i\left(\frac\pi{14}+\frac{2n\pi}7\right)}

\displaystyle\implies z = 2 \left(\cos\left(\frac\pi{14}+\frac{2n\pi}7\right)+i\sin\left(\frac\pi{14}+\frac{2n\pi}7\right)\right)

3 0
2 years ago
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