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write a programme that implements the following:

1- a class called shape which includes the height and the width as private attributes,

2- a derived class called rectangle which inherits the attributed from the shape and have a method called area which finds the area of the rectangle

3- a derived class called triangle which inherits the attributes from the shape and have a method called area that finds the area of the triabgle,


write a programme that implements the following:

1- a class called shape which includes the height and the width as private attributes,

2- a derived class called rectangle which inherits the attributed from the shape and have a method called area which finds the area of the rectangle

3- a derived class called triangle which inherits the attributes from the shape and have a method called area that finds the area of the triabgle,


prepare a one-year strategic marketing plan for Twitter to grow their unmet potential. The one-year strategic marketing plan for Twitter will include the following: -

i) Marketing Programme Positioning Strategy

  1. Promotion strategy- indicate the planned strategy, actions for advertising, publicity, internet, personal selling, and sales promotion.
  2. Marketing research- identify information needs and planned projects, objectives, estimated costs and timetable.
  3. Coordination with other business functions- specify the responsibilities and activities of other departments have an important influence on the planned marketing strategy

prepare a one-year strategic marketing plan for Twitter to grow their unmet potential. The one-year strategic marketing plan for Twitter will include the following: -

i) Marketing Programme Positioning Strategy

  1. Product strategy - set strategy for new product, product improvement and product deletions
  2. Distribution strategy- indicate the strategy to be used for each distribution channel, including the role of channel members, assist once and support provided, and specific activities planned. 
  3. Price strategy - specify the role of price in the marketing strategy and planned actions regarding price

Using exec system call list all the files and directories of home then 

store the result in “output1.txt”. Run a second command “grep” and find 

the word “output1.txt” in all the text files of the home also place home 

path in “PATH” environment variable while doing exec for grep. This all 

will be done in one process.


Find the expected value of the random variable X and its variance having the following density function details explanation

                                   f(x) = 5 (1-x4)         0<x<2

                                         = 0                   elsewhere


prepare a one-year strategic marketing plan for Twitter to grow their unmet potential. The one-year strategic marketing plan for Twitter will include the following: -

i) Marketing Programme Positioning Strategy

  1. Product strategy - set strategy for new product, product improvement and product deletions
  2. Distribution strategy- indicate the strategy to be used for each distribution channel, including the role of channel members, assist once and support provided, and specific activities planned.
  3. Price strategy - specify the role of price in the marketing strategy and planned actions regarding price.
  4. Promotion strategy- indicate the planned strategy, actions for advertising, publicity, internet, personal selling, and sales promotion.
  5. Marketing research- identify information needs and planned projects, objectives, estimated costs and timetable.
  6. Coordination with other business functions- specify the responsibilities and activities of other departments have an important influence on the planned marketing strategy.

5. Two shafts 30 in. apart, each carrying a four-step pulley, are to be connected by a cross belt. The driving shaft is to turn 180 rpm while the driven shaft is to turn 50, 150, 250, and 600 rpm. The smallest step of the driver is 10 in. in diameter. Find (a) the diameters of all the steps, (b) angle of contact for each pair of pulleys, and (c) belt length. Please explain the solution/answer.


A tumor is injected with 0.9

 grams of Iodine-125, which has a decay rate of 1.15%

 per day. Write an exponential model representing the amount of Iodine-125 remaining in the tumor after t

 days. Then use the formula to find the amount of Iodine-125 that would remain in the tumor after 60

 days.


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