Answer:
Explicit rule, because you can find the 40th term directly using the explicit rule. You would need to find the first 39 terms before finding the 40th terms using recursive rule.
hope this helps...
You would need to know the cost of the box of 20, then you would divide the total cost by the number of pencils in the box. This would give you the cost of one pencil - which is the unit cost.
Example:
Lets say the box of 20 pencils cost $10.
Divide the total cost by the number of pencils:
10 / 20 = 0.50 - This means each pencil cost 50 cents, so the unit cost would be 50 cents per pencil.
Answer:
The unit vector in component form is 
or 
.
Step-by-step explanation:
Let be 
, its unit vector is determined by following expression:
Where 
is the norm of 
, which is found by Pythagorean Theorem:
Then, the unit vector is:
The unit vector in component form is or .
