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Anit [1.1K]
4 years ago
15

The critical path for a project was found to be 37 days. The variances total 27. What is probability of completing in 43 days? B

elow is information that might be useful to answer the question. Answer to 2 decimal points
Mathematics
1 answer:
Phoenix [80]4 years ago
6 0

Answer:

0.1241.

Step-by-step explanation:

So, from the question we are given the following parameters or information or data which are going to help us in solving this particular question/problem. They are; [1]. The critical path for a project = 37 days, the variances total or variance of critical path or sum of variance on critical path]². = 27, the desired completion time/day = 43 days.

So, we will be making use of the formula given below;

The number of standard deviation = desired completion time/day - critical time or sum of critical path times ÷√[variance of critical path or sum of variance on critical path]².

The number of standard deviation = 43 - 37 ÷ √27 = 1.1547.

Thus, the probability of completing in 43 days = P(Z > 1.1547) = 0.1241.

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You are laying a concrete border around a circular pond ...The pond is 7 meters in diameter and is surrounded by a path 2 metres
nasty-shy [4]

Answer:

300 bags of 20 kg  of premixed are required.

Step-by-step explanation:

Given:

diameter of pond 'd'= 7 m (given)

radius of inner border of pond 'r'= d/2= 7/2 m

The radius of outer circular border 'R'= r+2= 7/2+2= 11/2m

Area of concrete border around the circular pond= area of outer circle- area of inner circle

So, \pi\times R^2-\pi\times r^2= \pi\times (R^2-r^2)

=> 22/7 x ((11/2)²-(7/2)²)

=> 22/7 x (121/4-49/4)

=>\frac{22}{7} \times \frac{72}{4}

=> 56.57 m²

volume of concrete needed= area x height= 56.57 x 0.05= 2.8285 cubic meter

Since 1 cube meter requires 106 x 20 kg bags,

2.8285 cubic meters require bags= 2.8285x106x20 kg

20 kg bags of premixed concrete required= 2.8285x106x20/20

=> 2.8285x106

=> 299.821 or 300 approximately

5 0
4 years ago
What is the ratio of 270 miles in 6 hours
bulgar [2K]
I depends if it is asking for miles to hours or hours to miles but, doing i would do hours to miles so it would be 270:6 which simplifies to 45:1
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4 years ago
Find the inequality represented by the graph ​
leva [86]

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Step-by-step explanation:

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Hi how is your day going <br>I have to solve this problem. but I need someone to explain it to me ​
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7 0
3 years ago
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