Answer:
8*4+3*2
Step-by-step explanation:
First we find the measurement of dark dot .
ANd for that we have to use the formula of the angle formed by the intersection of chord .
Let the dark dot be t.
So we have

t and z are linear pair and sum of angles of linear pair =180 degree.
So we get

Answer: 25%
Step-by-step explanation:
595 - 393.75 = 131.25
131.25 (amount of change)/ 525 (original amount) x 100%
= 25%
Answer:
After 3 seconds
Step-by-step explanation:
Given

Required
Time the drop will hit the ground
When the drop hits the ground,

So, we have:

Rewrite as:

Expand

Factorize

Factor out 5t + 1

Split
or 
Solve for t
or 
Time cannot be negative.
So:
