Question 4 is (1,2)
Question 5 is (1,0)
These are are definitely correct
The answer is A
1 1/2 *2 *1 1/2 = 4.5 or 4 1/2
The answer is
2
Explanation
You have to do 2/3 x 3 and you do that by multiplying 2 and 3 (6/6)
Which if you split up is 3/3, 3/3 = 2
10. from the question; the circle theorem obeyed is "angled formed by semi-circle"
The angle formed in a semicircle is 90 degrees, hence

This gives

But

Substituting values we get

hence, x =12