Computers and Technology, 25.02.2021 01:00 Hockeypro1127
If Tracy is facing right, which of the following commands can be used to turn her to face up?
A. left(90)
B. turn(up)
C. right(-90)
D. setposition(90)
A only
A and C
A, B, and C
A, B, C, and D
Answers: 1
Computers and Technology, 22.06.2019 19:20
1)consider the following code snippet: #ifndef book_h#define book_hconst double max_cost = 1000.0; class book{public: book(); book(double new_cost); void set_cost(double new_cost); double get_cost() const; private: double cost; }; double calculate_terms(book bk); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_cost should be removed since header files should not contain constants.c)the definition of book should be removed since header files should not contain class definitions.d)the body of the calculate_terms function should be added to the header file.
Answers: 1
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 21:00
Which set of steps will organize the data to only show foods with more than 100 calories and rank their sugar content from greatest to least?
Answers: 1
If Tracy is facing right, which of the following commands can be used to turn her to face up?
A. le...
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