Home control RFEI Mathematics 50 tasks
Replenishment date: 14.06.2013
Content: matematika_dom_kontr_50_z.rar (765.55 KB)
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Description
Home test Mathematics 50 problems.
Answers to 50 tasks are given, in the form of a table.
All tasks are contained in a separate file.
Tasks for comparison:
1. Find a matrix C equal to the sum of matrices A and B if ...
2. Calculate the product of matrices A and B if ...
3. Calculate the product of matrices A and B if ...
4. Find the matrix inverse to matrix A if ...
5. Solve the system by the matrix method: ...
6. Solve the system by the Gaussian method ...
7. Solve the system by Cramer's method using MS Excel ...
8. Solve the problem.
The company allocated 236 thousand conv. units to buy 29 items for office equipment: several
computers at the price of 20 thousand conv. units for a computer, office desks for 8,5 thousand conv. units at the table, chairs
1,5 thousand conv. units for the chair. Later it turned out that computers can be purchased elsewhere
19,5 thousand conv. units, and tables - 8 thousand conv. units (chairs at the same price), thanks to which at the same
the amount was bought for 1 table more.
Find out how many units of each type of equipment were purchased.
A) computers - 7; chairs - 13; tables - 10;
B) computers - 6; chairs - 11; tables - 13;
B) computers - 9; chairs - 10; tables - 11.
...
50. 10 packed mirrors were sent to the base. The likelihood that a mirror in transit will receive
damage is equal to 0,0003. How many mirrors will be damaged on average?
A) 6;
B) 3;
B) 11.
Answers to 50 tasks are given, in the form of a table.
All tasks are contained in a separate file.
Tasks for comparison:
1. Find a matrix C equal to the sum of matrices A and B if ...
2. Calculate the product of matrices A and B if ...
3. Calculate the product of matrices A and B if ...
4. Find the matrix inverse to matrix A if ...
5. Solve the system by the matrix method: ...
6. Solve the system by the Gaussian method ...
7. Solve the system by Cramer's method using MS Excel ...
8. Solve the problem.
The company allocated 236 thousand conv. units to buy 29 items for office equipment: several
computers at the price of 20 thousand conv. units for a computer, office desks for 8,5 thousand conv. units at the table, chairs
1,5 thousand conv. units for the chair. Later it turned out that computers can be purchased elsewhere
19,5 thousand conv. units, and tables - 8 thousand conv. units (chairs at the same price), thanks to which at the same
the amount was bought for 1 table more.
Find out how many units of each type of equipment were purchased.
A) computers - 7; chairs - 13; tables - 10;
B) computers - 6; chairs - 11; tables - 13;
B) computers - 9; chairs - 10; tables - 11.
...
50. 10 packed mirrors were sent to the base. The likelihood that a mirror in transit will receive
damage is equal to 0,0003. How many mirrors will be damaged on average?
A) 6;
B) 3;
B) 11.
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