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Weekly QuizDemonstrate a fearless pursuit of *auk*ademic*auk*cellence by plunging, head-first of course, into these questions. Return every week for a new quiz on another of the 14,000 topics in the Knowledge Master Library.

**Math Terms**(Click on the question number for the answer.) 1. two **Coefficients**

How many coefficients are in this expression?- 12x - 9y + 14

2. B **Time Vocabulary**

Decade is to ten years as fortnight is to ...

A. four days

B. two weeks

C. six months

D. fourteen hours

E. the time between two full moons

3. a plane **Basics of Geometry**

What has length and width but no depth or thickness?

4. B **Triangles**

What kind of triangle has three unequal sides?

A. skew

B. scalene

C. isoceles

D. congruent

E. equilateral

5. infinity **Math Quantities**

What term do mathematicians use for a quantity which is greater than any assignable quantity?

6. A **Graphic Representation**

A diagram depicts the lengths of barracuda against their weights. This representation of a frequency distribution is a ...

A. histogram

B. ideograph

C. pictograph

D. cryptogram

E. Venn diagram

7. perimeter **Analogies**

Circumference is to circle as ---- is to polygon.

8. C **Induction**

A mathematical surmise which generalizes from a set of particular observations with no known exceptions and for which no formal proof has been derived is a(n) ...

A. axiom

B. postulate

C. conjecture

D. hypothesis

E. probability

9. kite **Toys**

What common toy could be described in these words?- a quadrilateral with two pairs of equal adjacent
- sides, and consequently one pair of equal angles,
- with diagonals intersecting at right angles

10. D **Angles**

An angle that is between 180 degrees and 360 degrees is a(n) ...

A. acute angle

B. right angle

C. obtuse angle

D. reflex angle

E. straight angle

11. algorithm **Procedures**

The name given to a step-by-step procedure for carrying out algebraic operations is just as applicable to a cake recipe or instructions for programming a VCR. What is this term?

12. C **Planes**

Two intersecting planes form a ...

A. right angle

B. vertical angle

C. dihedral angle

D. supplementary angle

E. complementary angle13. identity **It's All True!**

An equation which is true for every value of the unknown is what kind of equation?

14. D **Special Lines**

A straight line which is approached but never actually reached by an infinite branch of a curve is a(n) ...

A. cycloid

B. quartic

C. centroid

D. asymptote

E. intercept

15. corollary **Consequences**

A theorem that is a direct consequence of another theorem is called a ...

16. C **Integer Sets**

What set of positive integers satisfies the equation, a squared + b squared = c squared?

A. trigonometric identities

B. Cartesian coordinates

C. Pythagorean triples

D. Fibonacci sequences

E. ordered pairs

17. concentric **Geometric Figures**

An annulus is the region bounded by two ---- circles.

18. D **Sine Curves**

Another name for a sine curve is ...

A. ellipse

B. cycloid

C. conic section

D. periodic curve

E. geometric spiral

19. transposition **Algebraic Processes**

Name the process of moving a quantity from one side of an equation to the other side by changing its sign of operation.

20. scale **Map Math**

The fixed ratio between the size of the model and the size of the real object is called the ...

21. A **Central Tendency**

The most frequent score in a set of scores is the ...

A. mode

B. mean

C. datum

D. median

E. average

22. pi **Archimedes**

Archimedes described it as greater than 3 10/71 and less than 3 10/70. Today that number is called ...

23. B **Fundamentals**

A mathematical statement admitted without proof is a(n) ...

A. theorem

B. axiom

C. principle

D. hypothesis

E. conclusion

24. significant **Digits**

Any digit that is obtained by actual measurement and is not simply a placeholder used to position the decimal point is what kind of digit?

25. C **Powerful Equations**

Algebraic equations containing the unknown quantity in the second but no higher power are what kind of equations?

A. cubic

B. linear

C. quadratic

D. differential

E. simultaneous

26. doughnut **Topological Treats**

A torus resembles what breakfast item from a bakery?

27. E **Mathematical Concepts**

Which concept on the left is not paired with numbers or symbols that illustrate it?

A. integer, -4968

B. coefficient, 5x + 9 = 3

C. identity, 7 + 0 = 7

D. additive inverse, 22 + (-22) = 0

E. reciprocals, a/b + b/a = 1

28. parallel lines **Euclid**

Euclid referred to what when he said this?- In the same plane they will never intersect

or meet, no matter how far they are extended.

29. A **Spheres**

The opposite ends of any diameter of a sphere are described as being what kind of points?

A. antipodal

B. anecdotal

C. antecedent

D. antithetical

E. antemeridian

30. quantity **Numerals**

If ordinal numerals designate order, what do cardinal numerals designate?

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**Answers to Math Terms**- 1. two
- 2. B
- 3. a plane
- 4. B
- 5. infinity
- 6. A
- 7. perimeter
- 8. C
- 9. kite
- 10. D
- 11. algorithm
- 12. C
- 13. identity
- 14. D
- 15. corollary
- 16. C
- 17. concentric
- 18. D
- 19. transposition
- 20. scale
- 21. A
- 22. pi
- 23. B
- 24. significant
- 25. C
- 26. doughnut
- 27. E
- 28. parallel lines
- 29. A
- 30. quantity
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