Answer:
The exact area is 10^2 x 3.14 =100pi (3.14), using the approximation this is 314
For number one do 7\2 • -4/7
Answer:
b)

Step-by-step explanation:
<u>Step(i)</u>:-
Given quadratic equation ax² + bx + c = 0
<u>step(ii)</u>:-
ax² + bx = -c
<u>Step(iii):</u>-
Dividing 'a' on both sides , we get


<u><em>Step(iv)</em></u>:-
Adding
on both sides , we get
