<span>1. In a circle, if two chords are equal in measure, then their corresponding minor arcs are equal in measure.
2. The relationship between equality of the measures of chords and equality of the measures of their corresponding minor arcs.
3. A diameter that is perpendicular to a chord.
4. In a circle, the relationship between two chords being equal in measure and being equidistant.
5. A circle with two minor arcs equal in measure
6. A circle with a diameter perpendicular to a chord.
I don't know if this will help you but maybe it will</span>
Answer:
a) 
b) 0.27778
Step-by-step explanation:
a)
There are 26 lowercase letters and 10 digits.
The character that must be a digit can be generated in 10 different ways and the others, in 26+10=36 different ways.
Since the password is 6 characters long, by the Fundamental Rule of Counting there are
10*36*36*36*36*36 = 604,661,760
In scientific notation this number can be expressed as
b)
By the <em>Fundamental Rule of Counting</em>, there would be
different combinations of 6 characters, but only the number computed in a) are valid combinations, so the probability of generating a valid password is

The answer to your question is 0.56
Answer:
7
Step-by-step explanation:

This is the sum of the first three terms of a geometric sequence, where the first term is 4 and the common ratio is ½.
We can use a formula to find the sum, or, since there's only three terms, we can find the value of each term then add up the results.
4 · (½)¹⁻¹ = 4
4 · (½)²⁻¹ = 2
4 · (½)³⁻¹ = 1
4 + 2 + 1 = 7