Answer:
C
Step-by-step explanation:
It is provable about 180 ways, some of them quite elegant. There was a book published in the 1940s listing what they then knew. Others have been added since and it shows up in the oddest places which you can search out.
That is interesting but it does not answer your question.
A: Nothing is defined. This statement is a truth, but unproved. A is not the answer.
B: No term requires defining unless you don't know what a hypotenuse is, but that is a separate problem.
D: a postulate is a statement that is true that cannot be proven nor does it need to be. There aren't that many around in math. Euclid said "All right angles are congruent." True and not needing proof.
C: It is a theorem. This is a statement that may not be obvious and does require proof.
Answer:
56.3%
Step-by-step explanation:
56.3%
Answer:
He will have $39,750 at the end of five years.
Step-by-step explanation:
This is a simple interest problem.
The simple interest formula is given by:

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.
After t years, the total amount of money is:

In this question:

Interest earned:

Total amount:

He will have $39,750 at the end of five years.
Answer: Pt= 3/256
Step-by-step explanation:
For each round the probability of winning is:
Pw = number of blue dotted ducks/ total number of ducks
Pw= 5/20 ( since the duck is being replaced)
The probability of losing is:
Pl= number of ducks without blue dotted belly/ total number of ducks
Pl = 15/20
Therefore the probability of winning 3 times out of 4 is:
Pt= Pw× Pw×Pw×Pl
Pt= (5×5×5×15)/(20×20×20×20)
Pt= 1875/160000
Pt= 3/256
Goodluck...