21 3 Marks IAS
40
C
a) Work out the size of angle x.
A
100°
B
b) Give reasons for your answer.
D
+
E
to
F
Н
G

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.