Answer:
A
Step-by-step explanation:
given 
note that 49² = 2401, hence
=
→ A
I know the 1st and last one but i’m not sure on the rest sorry :(
We can convert that into a fraction of 100 for the percentage.
4/20= 20/100
(multiply both by 5)
So, the basketball player makes 20% of the throws.
I hope this helps!
~kaikers
7978 years
Step-by-step explanation:
A = A02^(-t/hl)
where hl = half-life.
Dividing both sides by A0 and taking the logarithm, we get
ln(A/A0) = -(t/hl)ln2
or solving for t,
t= -(hl)ln(A/A0)/ln2
note that A/A0 = 0.38
t = -(5715 yrs)[ln(0.38)/ln2]
= 7978 years