Consider the system of simultaneous equations:

x1 + 3x2 + 5x3 + 2x4 = 7

2x1 ? 4x2 + 7x3 ? 3x4 = ? 3

? 4x2 ? 7x3 + 3x4 = ? 1

5x1 ? 3x2 + 2x3 + 1x4 = 0

which in matrix notation we could write as mx = c.

(a) write two matlab assignment statements for the matrices that correspond to m and c in the

matrix notation indicated.

(b) what matlab statement would you use to solve this system of linear equations?

(c) type your statements into matlab and obtain the solution. what is the solution?

Perform the following tasks: a. create a class named testclass that holds a single private integer field and a public constructor. the only statement in the constructor is one that displays the message “constructing”. write a main()function that instantiates one object of the testclass. save the file as testclass.cpp in the chapter 08 folder. run the program and observe the results. b. write another main()function that instantiates an array of 10 testclass objects. save the file as test class array.c . run this program and observe the results.

4. a1. vince owns a television repair shop that is insured undera commercial package policy. the policy includes thebuilding and personal property coverage form and thecauses-of-loss broad form. the declarations page indicatesthat coverage applies to both the building and the namedinsured's business property. explain whether or not thefollowing losses would be covered under his policy.a. a fire occurs on the premises, and the building isbadly damaged.b. a burglar steals some money and securities from anunlocked safe.c. a business computer is damaged by vandals whobreak into the shop after business hours.d. a tornado touches down near the store. several tel-evision sets of customers in the shop for repair aredamaged in the storm.til

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