Math with Miss Wolfe - Extra Credit

Any extra credit that I give to any class will be posted on this page. Your options for submitting your answers include:

• e-mailing me,

• messaging me (Yahoo or MySpace), or

• printing out your answers and bringing them in to class.

Please make sure you include the question you are answering. Most questions are worth 25 points, unless otherwise posted.

Happy searching and have fun!

There will be no extra credit Quarter 4 except for when EVERYONE in your class is prompt.
That is the only thing that will not change.
Please encourage your classmates to show up to class on time for all students to receive those 5 extra credit points.

1. Who is Thales? Why is he important to Mathematics? (20 points)

2. What is the Archimedes Screw and how does it work? (20 points)

3. What is a slide-rule and how does it work? (20 points)

4. State the Law of Cosines. (10 points)

5. What is the standard form of the Quadratic Equation? (10 points)

6. Which mathematician was born in Pythagora, Greece? What is "his" theorem? (Write the equation.) (20 points)

7. What do the following letters stand for in Euclidean Geometry? (40 points)

• SAS Theorem

• SSS Theorem

• ASA Theorem

• AAS Theorem

8. State the classification of triangle: (60 points)

• No right angles and all the angles are less than 90 degrees?

• No right angles and one angle is more than 90 degrees?

• One angle is 90 degrees?

• All sides are different lengths?

• Two sides are congruent?

• All three sides are congruent?

9. What is a 12-sided polygon called? (10 points)

10. What is a derivative? (10 points)

11. Translate into algebra: (30 points) Then, Solve the expressions (30 points)

• Two less than a number ‘g’ is less than twice that number.

• The quotient of a number ‘h’ squared and two is eight.

• A car’s cost ‘c’ is 20% less than $10, 000.