4a * 7c (-2 + -4)= -168ac.
Answer:2
Step-by-step explanatbuy ion:1/4 +2/5+1.35
Find the amount of the increase and divide that by the original amount:
7.70 - 7.00 = 0.70 increase
0.70 / 7.00 = 0.1
Multiply by 100 to get the percentage:
0.1 x 100 = 10 %
The increase was 10 %
Answer:
Step-by-step explanation:
Given
<em>See attachment for circle</em>
Required
Find
From the attachment, we can see that:
is at the circumference
is in at the center
From cyclic theorems,
The relationship between ABC and ADC is:
Make ABC the subject
Substitute: