Answer:
SAS theorem
Step-by-step explanation:
If 
and m∠ECD = m∠BCA, then the triangles are similar by the SAS theorem.
So, and m∠ECD = m∠BCA because vertical angles are congruent
Therefore ΔECD is similar to ΔBCA by SAS theorem
Answer:approximately 50 years.
Step-by-step explanation:
Let $P represent the initial amount that she deposited. It means that principal,
P = $P
It was compounded annually. This means that it was compounded once in a year. So
n = 1
The rate at which the principal was compounded is 1.4%. So
r = 1.4/100 = 0.014
The formula for compound interest is
A = P(1+r/n)^nt
A = total amount in the account at the end of t years. For the initial amount to double, it means that
A = 2P
Therefore
2P = P (1+0.014/1)^1×t
2P/P = (1.014)^t
2 = (1.014)^t
Taking log to base 10 of both sides, it becomes
Log 2 = log 1.014^t
Log 2 = tlog 1.014
0.301 = 0.006t
t = 0.301/0.006 = 50.2 years
Hey there!
Firstly, we are going
add 
on each of the sides that we're working with. like ↓
This gives us
(if you are wondering how we got the out come of
it is because I
added 
Now
multiply 
on each of your sides
Cancel the first set and you will find the value of
Good luck on your assignment and enjoy your day ~
It is b only b I think sorry If I am wrong have a good day
C- Evolutionarily they have adapted to their surroundings (its lighter on the beach compared to inland)
hope the helped!
