What is the probability of choosing a t?
3/12 or 1/4
Describe fully the transformation from A to B
translation
([-3],[5])
These shapes are similar.
What is the missing length y?
10 cm
The shapes below are a regular hexagon and octagon. Work out the angle y.
105
The probability that Amy wakes up late is 0.3.
In December estimate how many days she will wake up late.
0.3 x 31 = 9.3 days
Jennifer asked 80 people which sports they enjoy from Football, Hockey and Rugby.
What is the probability that a chosen person played rugby?
(31+17+5+3)/80 = 56/80
Describe fully the transformation from A to B
rotation 90 degrees
anti clockwise
from centre (0,0)
Triangle ABC is similar to triangle ADE.
Work out the length of DE8 cm
Work out n(A U B)
n (A U B) = 9
Two fair six sided dice are rolled.
The numbers on the two dice are multiplied together to give a score.
a) Complete the table to show all possible scores.
b) Write down the probability of scoring a 12
The possibilities are:
2,6 6,2 3,4 4,3
4/36
In a class of 24 students
12 students play the piano
13 students play the guitar
4 students play neither instrument.
Represent this information on a Venn diagram.
How many students play only one instrument?
Describe fully the transformation from A to B
reflection in the line x=0
Work out the length of MO.
SF = 15/6 = 5/2
5 x 5/2 = 12.5 (this is length of NO).
So MO is 12.5 + 5 = 17.5 cm
factorise
x2 -13x + 40
(x-5)(x-8)
Work out the probability that George picks two different colors
6/10 x 4/9 = 24/90 =12/45 = 4/15
Shade in the correct part below:
Describe fully the transformation from A to B
enlargement
from centre (1,5)
scale factor 1/2
Below are two similar pentagonal prisms.
LSF = 3
VSF = LSF3 = 33=27
Volume B = 15 x 27 = 405 cm3
29.2 cm
Matt and Thomas each take a penalty.
The probability that Matt scores is 0.6 The probability that Thomas scores is 0.7
Find the probability of one boy scoring
0.6x0.3+0.4x0.7 = 0.46
At a wedding, the guests may have ice cream or custard with their dessert. The Venn diagram shows information about the choices the guests made.
I guest who likes ice cream is chosen. What is the probability they also like custard?
9/60
Reflect the shape below:
No tracing paper allowed for 500 points!
Find the value of y
VSF = 8000/1000 = 8
LSF = square root of 8 = 2
y = 20 x 2 = 40 cm
8m12