Question № 1. Which number in the decimal system schislen

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Lesson number one.

Question № 1. Which number in the decimal system corresponds to the number (101010) 2?
1) 42;
2) 40;
3) 43.
Question № 2. The number 301220 is not written in the decimal system. What it may be the system?
1) binary;
2) ternary;
3) fivefold.
Question № 3. Which number in the decimal system corresponds to the number (12340) 5?
1) 12340;
2) 970;
3) 975.
Question № 4. The surface of the earth is 510 million km2. Write this number in standard form.
1) 5,1 • 108;
2) 51 • 107;
3) 0,51 • 109.
Question № 5. What numbers are involved in recording the numbers in the sevenfold number system?
1) from 1 to 7;
2) from 0 to 7;
3) from 0 to 6.
Question № 6. Which numbering system marked the beginning of the year the division for 12 months?
1) binary;
2) ternary;
3) duodecimal.
Question № 7. Which of the numbers recorded in nonpositional notation?
1) XXII;
2) (27) 8;
3) (100011) 2.
Question № 8. Which number system was prevalent in Russia to decimal?
1) fivefold;
2) decimal;
3) duodecimal.
Question № 9. What is the numbering system, which used to count fingers and toes?
1) fivefold;
2) decimal;
3) base twenty.
Question № 10. What is the number: 105 + 104 + 2 • 3 • 10 + 4?
1) 120034;
2) 1234;
3) 10234.
Question № 11. Which number system is now regarded as a universal and shared by all peoples of the world?
1) binary;
2) fivefold;
3) decimal.
Question № 12. As can be called the origin of all number systems, which are used for the account of the human body?
1) anatomical origin;
2) neanatomicheskoe origin;
3) natural origin.
Lesson number 2.
Question number 1.
What is an equivalence relation?
1) divisibility;
2) equality;
3) more.
Question number 2.
What are the properties of the set of natural numbers?
1) limited top order, resolution;
2) is closed under addition and multiplication, continuity, bounded below;
3) ordering, not closed under subtraction and division, discrete.
Question number 3.

1)
2) β and λ;
3) β and ω.
Question number 4.
What theories are recognized in modern mathematics?
1) formal;
2) formalized;
3) axiomatic.
Question number 5.
Which set of numbers belong to the following numbers: 1; - 2; 0.153; 7 (23)?
1) Z;
2) Q;
3) N.
Question number 6.
What number in ancient Greece represents the number 15?
1) linear and triangular;
2) flat and triangular;
3) solid and square.
Question number 7.
What are the properties of the set of integers?
1) Unlimited ordering closed under addition, subtraction and multiplication;
2) ordering, discrete, not closed under subtraction;
3) order, resolution, closure under division.
Question number 8.
Which of the sets is not an extension of the set of natural numbers?
1) rational numbers;
2) irrational numbers;
3) real numbers.
Question number 9.

Additional information

reply to question 12 of test

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