10
B and C
D
c2 + 9c + 90
(10 - 2x)^4
x=4
= (10 - 2x4)^4
= (10 - 8)^4
16
=2^4
=2 x 2 x 2 x 2
= 16
Surface area = Area of square base + area of 4 triangular faces
Area of square base = L^2 = 10^2 = 10cm x 10cm
= 100cm^2
Area of triangular faces = 4(1/2 bh)
b = 10cm
h = 12cm
= 4 x 1 x 10cm x 12cm
2
= 2 x 120cm = 240cm^2
100cm^2 + 240cm^2 =
340cm^2
340cm^2
There is no second measurement showing the period of time.
3
0.7 x 10^5
0.0075
She used two different lengths for each arc, therefore it is not centred.
5
3/8
32 GB
500,000 MB
1 TB
54
-1
-5
8
20
3
1
4
7
4
0
6
7
5
2
5
6
8
8
70
46
angle h = angle g (alternate angles)
since EFC is a right angle y + 20 = 90
y = 70
sum of angles in a triangle
46 + 70 + x = 180
therefore, x = 66 degrees
66
On the graph it is shown that the temp increases 0.3 degrees every 20 mins
from 9am to 11am is 2 hrs = 120 mins = 6 x 20 mins
= 6 x 0.3 = 1.8
16.1 + 1.8 = 17.8 degrees Celsius
17.8
First we must find the no of red counters in Olivers jar
3+4=7
red = 4
therefore we must find 4 x 42
7
which is 24
Oliver has 24 red counters
Angelique also has 24 red counters
red in her jar counts as 2 in the ratio 5:2
5+2=7
this means that 2 y = 24
7
2y = 24 x 7
y = 12 x 7
= 84
84 counters
5
7
4
Cross multiply
12 = -3 (5 - 2x)
12 = -15 + 2x
12 + 15 = 2x
27 = 2x
2
2
13.5 = x
x = 13.5
13.5
The sum of given probabilites is always 1
therefore
0.3 + 0.1 + x + 1.5x = 1
0.4 +2.5x = 1
2.5x = 1 - 0.4
2.5x = 0.6
x = 0.6 / 2.5
x (blue) = 0.24
We have gotten all needed values for the
question, we therefore do not need to solve for
yellow
blue or green = blue + green
= 0.24 + 0.1
= 0.34
0.34