Answer:
hi people
Step-by-step explanation:
not really sure but i need these points
<h3>Key points :-</h3>
★ The theorem states that the products of the lengths of the line segments on each chord are equal.
★ When two points of a circle are joined by a line that line is known as chord.
★ The longest chord is known as diameter of circle.


<h3>#1</h3>

<u>["""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""]</u>
<h3>You can solve the others yourself for practice...</h3>
t=100
p=3000
t 1/2 = 20
Try inserting the numbers in the half-life formula.
Answer:
5*10^10
Step-by-step explanation:
10 to the power of 10 is 10^10.
10^10*9 is 90000000000
10^10*4 is 40000000000
90000000000-40000000000=50000000000
5*10^10