SEM II MIDTERM EXAMINATIONS: Part I M.5 Math Fun

SEM II MIDTERM EXAMINATIONS:

Part I M.5 Math Fun

M.5/8-M.5/9

10 points

Part IA: Instructions (questions 1-5)

Read carefully choose A if sentence 1 and sentence 2 are both TRUE. Choose B is sentence 1 is FALSE sentence 2 is TRUE. Choose C if sentence 1 is TRUE, sentence 2 is FALSE. Choose D if sentence 1 and sentence 2 are both FALSE.

a. TT 

b. FT

c. TF 

d. FF

Multiple Choice

1. Certain sequences (not all) can be defined (expressed) as an "explicit" formula. An explicit formula will create a sequence using n, the number location of each term.

• a. TT

• b. FT

• c. TF

• d. FF

Multiple Choice

2. A series is an ordered list. It is a function whose domain is the natural numbers {1, 2, 3, 4, ...}.

• a. TT

• b. FT

• c. TF

• d. FF

Multiple Choice

3. If a sequence adds a fixed amount from one term to the next, it is referred to as an arithmetic sequence. The scatter plot of this sequence will be a linear function.

• a. TT

• b. TF

• c. FT

• d. FF

Multiple Choice

4. If a sequence multiplies a fixed amount from one term to the next, it is referred to as a geometric series. The scatter plot of this series will be an exponential function.

• a. TT

• b. TF

• c. FT

• d. FF

Multiple Choice

5. Arithmetic sequences are exponential functions. Geometric sequences are linear functions.

• a. TT

• b. TF

• c. FT

• d. FF

Part IB: Instructions (questions 6-10)

• Read carefully and choose the correct answer.

Multiple Choice

6. Given the sequence: {6, 16, 26, 36, ...}. What is the explicit formula for this sequence?

• a. f (n) = 4 + 10(n –1)

• b. f (n) = 10n - 4

• c. f (n) = 6n - 10

• d. neither

Multiple Choice

7. A pattern exists in the sum of the interior angles of polygons. The sum of the interior angles of a triangle is 180 degrees, a quadrilateral is 360 degrees and of a pentagon is 540 degrees. What is the sum of the interior angles of a nonagon?

• a. 900 degrees

• b. 1080 degrees

• c. 1260 degrees

• d. 1440 degrees

Multiple Choice

8. If you will insert 3 arithmetic terms between 7 and 23. What will be the value of its common difference?

• a. 1/4

• b. -1/4

• c. -4

• d. 4

Multiple Choice

9. Cameron is starting a 6-week jogging program. He will jog 8 miles the first week and increase the distance by 10% per week. Using sigma notation, write an expression to represent the total number of

miles he will have jogged over the 6-week program.

Multiple Choice

10. Evaluate:

• a. 8

• b. -8

• c. 1/8

• d. -1/8