Computers and Technology, 02.04.2021 14:00 maggie2018
alpha and beta are zeros of polynomial X square + 7 x + 7 then find the value of Alpha ^ - 1 + beta ^ - 1
Answers: 3
Computers and Technology, 22.06.2019 01:30
Consider the following statements: #include #include class temporary { private: string description; double first; double second; public: temporary(string = "", double = 0.0, double = 0.0); void set(string, double, double); double manipulate(); void get(string& , double& , double& ); void setdescription(string); void setfirst(double); void setsecond(double); }; write the definition of the member function set() so that the instance variables are set according to the parameters. write the definition of the constructor so that it initializes the instance variables using the function set() write the definition of the member function manipulate() that returns a decimal number (double) as follows: if the value of description is "rectangle", it returns first * second if the value of description is "circle" it returns the area of a circle with radius first if the value of description is "cylinder" it returns the volume of a cylinder with radius first and height second. hint: the volume of a cylinder is simply the area of the circle at the base times the height. if the value of description is "sphere" it returns the volume of the sphere with radius first. otherwise it returns -1.0;
Answers: 1
Computers and Technology, 22.06.2019 15:00
The three logical operators used to write compound conditions are "and," "or," and "not." a: true b: false
Answers: 2
Computers and Technology, 23.06.2019 10:20
Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?
Answers: 1
Computers and Technology, 23.06.2019 14:00
How are stop motion special effects in animated films created
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alpha and beta are zeros of polynomial X square + 7 x + 7 then find the value of Alpha ^ - 1 + beta...
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