Cris P. Bacon
Find the factors of 49
(One minute)
1 x 49
7 x7
Find the 16th term of an arithmetic sequencing that begins with 7 and has a common difference of 4?
(Two Minutes)
67
Suppose p is the statement “15=25“ and q is the statement “5+5=10.“ Which statement is correct?
i) p -> q is true
ii) q -> p is false
a) i only
b) ii only
c) neither i nor ii
d) both i and ii
(One Minute)
D
Given A = {x,y,z}
List all the subsets for A
Proper Subsets
(One Minute)
{x},{y},{z},{ },{x,y},{x,z},{y,z},{x,y,z}
True or False?
(F n E)'= F' n E'
(One Minute)
False
Find the Factors of 36
(One Minute)
1 x 36
2 x 18
3 x 12
4 x 9
6 x 6
Find the sum of the first 20 terms of sequence that begins with 3 and has a common difference of -6.
(Two Minutes)
-1080
Write the symbols that accurately portray this question.
P= It is cold.
Q= It is rainy.
"It is cold and not rainy."
(One Minute)
P ^ ~Q
Given the conditional p -> q is true, which of the following statements is true?
p is necessary for q
p is sufficient for q
q is necessary for p
(Two Minutes)
P is sufficient for Q
Q is necessary for P
Write a truth table for a conjunction
I took the dog on a walk and did my homework.
P ^ Q
(Two Minutes)
p q p^q
t t t
t f f
f t f
f f f
Find GCF and LCM of 52 and 130
(Two minutes)
26= GCF
260= LCM
Find the sum of the first 10 terms of a geometric sequence whose first term is 3 and whose common ratio is -2.
(Two Minutes)
-1023
If this is inverse, what are the others?
If kiwi go to Mars, then tomatoes have noses.
(Two Minutes)
GC: If kiwi don’t go to Mars, then tomatoes don’t have noses.
C: If tomatoes don’t have noses, then kiwi don’t go to Mars.
CP: If tomatoes have noses, then kiwi go to Mars
Logically valid?
In 2016, a student said, "Pigs will fly before I pass this class!" That student went on to pass the class. Therefore, pigs must be flying.
(One Minute)
Yes, it doesn't have to logically make sense.
Write a truth table.
~ (pvq) ->q
(Two Minutes)
T
T
T
F
Write out examples of each of the following properties:
Commutative
Associative
Identity
Zero
Inverse
Distributive
(Two Minutes)
Commutative Property- 5+2= 2+5
Associative Property- (3+8)+2= 3+(8+2)
Identity Property- 7+0=7/ 7x1=7
Zero Property- nx0=0
Inverse Property- 7+(-7)=0 or 7x1/7=1
Distributive Property- 5(x+2)=5x+2
U= {11,12,13,14,15,16,17,18,19}
A= {11,13,15,17}
B= {12,14,16,18}
C= {12,13,15,17}
(AUB)nC'
(Two Minutes)
{11,14,16,18}
To find if this is valid or invalid, write out the statement in symbols. Then, solve to see if this is logically valid or invalid
If the robbers escape, then the cops have to find them, and the robbers did not escape.
Therefore, the cops don’t have to find them.
(Two Minutes)
Invalid
Logically Valid?
If the student is getting a drink from Starbucks, then the student can study.
The student is studying. Therefore, the student did get a drink from Starbucks.
(One Minute)
Valid
Shade the following using the numbering method.
(A n B') U C
(Two Minutes)
Shaded areas are 1,4,5,6,7
fWhat are the first five terms of a sequence whose first term is a and whose common difference is d?
a=6 d=8
(Two minutes)
6,14,22,30,38,...
Seventy- five students participated in a survey at a local college and the following data were collected. There were 30 students taking accounting and 9 only taking psychology. Forty- one were taking statistics. Thirteen students were taking accounting and statistics but not psychology, and 17 were taking psychology and statistics. Five students were taking all three courses. Twelve people only took accounting.
How many students in the group were not taking any of the three subjects?
How many students in the group were taking psychology?
How many students were taking accounting and psychology, but not statistics?
How many students were taking just one of these subjects?
(Five Minutes)
1=12
2=0
3=9
4=13
5=5
6=12
7=11
8=13
13
26
0
32
Valid or Invalid?
If it is raining then the streets are wet, and the streets are wet.
Therefore, it is raining.
(Two Minutes)
Invalid
(p ^ q) <-> (q v ~p)
(Two Minutes)
t
t
f
f
(A U C)' n (B - C)'
(Two Minutes)
{8}