The diameter of a circle is 2 units. What is the radius of the circle
1 answer:
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Answer:
c) The series diverges. There is no sum.
Step-by-step explanation:
A geometric series is a series of the form:
,
Where:
- First term of the series, dimensionless.
- Common ratio, dimensionless.
A geometric series converges only if . As
, the geometric series diverges. Hence, the right answer is C.
The number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter is 26×31⁷.
<h3>What is Combination?</h3>The combination helps us to know the number of ways an object can be arranged without a particular manner. A combination is denoted by 'C'.
where,
n is the number of choices available,
r is the choices to be made.
As it is given that the password can only be made with letters or numbers, and we know that there are only 26 letters and there are 10 numbers, therefore, the total option available is 36.
Also, it is given that the first letter of the password can only be made with letters, therefore, there are only 26 options available for the first place in the password.
The number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter,
Hence, the number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter is 26×31⁷.
Learn more about Combination:
Answer:
Step-by-step explanation:
The general equation of a line:
In our case <em>a</em> is given
Now we plug in for <em>a</em> and we get:
Now we plug in our coordinates into this equation and we solve for <em>b</em>
So the equation of the line is