26 letters {A; B; C; D;...;Z}
10 numbers {0; 1; 2; 3;...;9}
L-letter; N-number
code
LLNN
LNLN
LNNL
NNLL
NLNL
NLLN
26 · 26 · 10 · 10 · 6 = 135,200
Random sampling is when you select a random group of people for something.
Ex. Out of a population of 259,096 people, a random sample of 400 people are choosen.
Find 60% of 65 then add it to 65:
0.6 * 65 = 39
Now add it to 65:
39 + 65 = 104
So she's selling camera's for $104 each.
The mass of the object is 13 kg.
Step-by-step explanation:
A baseball field is in the shape of a square (or diamond). Home plate and second base are opposite corners of each other. So the distance is equal to the diagonal of the square.
Use Pythagorean theorem to find the diagonal, or use properties of a 45-45-90 triangle.
Using Pythagorean theorem:
c² = a² + b²
c² = (90 ft)² + (90 ft)²
c = 90√2 ft
c ≈ 127 ft