If you flip a coin 1 time what is the probability of it landing on heads?
50% or 1/2
What is the formula for finding the volume of a cylinder?
V= 3.14r2h
What is a variable?
a variable is a letter that represents an unkown quantity or number
Which fractions are mixed fractions and which fractions are inproper fractions?
a) 13/15
b) 11/9
c) 6/4
d) 20/10
Mixed fractions= a
Inproper fractions= b,c,d,e
3+(-4) =
(-1)
How do you calculate theoretical probability?
number of favourable outcomes over total number of possible outcomes
A cone has the radius of 4cm and height of 10cm what is the volume?
a)167.466cm3
b)140.9cm3
c)181.211cm3
a) 167.466cm3
What are three variables we avoid to not have anyone misinterpreted?
S, t, O
Are these fractions equivalent?
44/15 64/15
yes
(-12) + (-18) =
(-30)
A spinner has eight sections five of them are black. If you spin it five times what is the probability of it landing on black?
24/40 or 62.5%
What is capacity normally measured in?
litre's
Which of the three graphs are linear?
1) 2)
3)
1)
multiply these fractions
5/7 x 3/8 =
=15/56 or 311/56
3- (-4) =
name the two scenarios independant or dependant
1) You have a bag of blue and red jelly beans and you close your eyes and pull out a red jellybean you then put it back in and close your eyes to pick out a new jellybean.
2) You have a deck of cards and pick one randomly then you don't put it back in and pick another card randomly.
1= dependant
2= Independant
a pool is 4m tall 3m wide and 10m long what is the capacity of the pool?
120,000,000mL
If one bear is equal to 10 and each strawberry is equal and there are 5 strawberrys in one bear what is each strawberry worth?
=10
= ___
Each stawberry is 2
divide these fractions
16/20 8/15 =
122/128
(3- (-4)) + (-4)=
3
what is the law of large numbers?
Law of large numbers= As we increase the number of trials, the experimental probabilities of an event tend to get closer to the theoretical probability
What is the volume for this shape?
78cm3
7x+9 =
=23
(2/8 x 4/6) + 7/9 =
11/18
((-3) + (-4)) + (-4 + (-70)) =
-10