Answer:
3m 95cm
Step-by-step explanation:
its... simple math? i added 2 and 1; and 30 and 65?
Answer:
the answer is 40.1 cm
Step-by-step explanation:
The adjacent in the triangle is 23cm and the Alpha is 55 degrees, so just insert the formula to find the adjacent which is x .
Tq
The answer is 14 and 46cm
Answer:
There are 60840 unique PINS if letters can be repeated but digits cannot be repeated
Step-by-step explanation:
In total, there are 26 letters and 10 digits.
The PIN has the following format:
L - L - N - N
The letters can be repeated, so for both letters, there are 26 options.
The digits cannot be repeated. So for the first digits there are 10 options. For the second there are 9, since the first digit used cannot be repeated.
In total:
26 - 26 - 10 - 9
26*26*10*9 = 60840
There are 60840 unique PINS if letters can be repeated but digits cannot be repeated
A circle with center 
and radius 
has equation
If we substitute 
in this equation, we have
This equation has two solutions (i.e. the line intersects the circle in two points) if and only if the determinant is greater than zero:
The expression simplifies to
The solutions to the associated equation are
So, the parabola is negative between the two solutions:
