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Pre-Cal Unit 6 Review
Test Description: Series, binomial theorem, permutations, combinations, probability, limits, continuity
Instructions: Answer all questions to get your test result.
1) Evaluate the series (10-n) from n=0 to 4.
A
40
B
30
C
35
D
25
2) Use Pascal's Triangle to expand (x + 2)^3
A
x^3 + 8x^2 + 24x + 6
B
x^3 + 10x^2 + 18x + 24
C
x^3 + 6x^2 + 12x + 8
D
x^3 + 3x^2 + 3x + 1
3) Does choosing a 4-digit PIN involve a combination or permutation?
A
permutation
B
don't choose this one
C
neither
D
combination
4) How many different ways can 4-digit PIN be chosen?
A
5040
B
40
C
250
D
400
5) What is the probability of rolling a number greater than 4 on a fair die?
A
0.17
B
0.67
C
0.5
D
0.33
6) If there is a jump discontinuity at x=2, then the limit of f(x) as x approaches 2...
A
DNE
B
not enough information
C
exists
D
don't choose this one
7) If there is a removable discontinuity at x=2, then the limit of f(x) as x approaches 2...
A
DNE
B
don't choose this one
C
exists
D
not enough information
8) Find the limit as x approaches 2: x^2 - 5x + 3
A
4
B
6
C
-7
D
-3
9) Find the limit as x approaches infinity: 8 - (1/x)
A
DNE
B
1
C
8
D
0
10) Find the limit as x approaches infinity: (2x^2 + 4)/(3x^2 - 1)
A
-4
B
2/3
C
3/4
D
0
*select an answer for all questions
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