If r objects are being selected from a group of n distinct objects and order does matter, then this arrangement is known as a
1 answer:
Answer:
Permutation
Step-by-step explanation:
The term to describe the given statement is permutation.
When defining permutation, certain keywords such as order does matter and arrangement are used to describe permutation.
Take for instance:
<em>The arrangement of 3 boys on a seat</em>
<em>Ways 4 friends can sit to take photographs</em>
<em />
...are examples of permutation
Permutation of r objects in n distinct objects is calculated as:
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To evaluate , you'd start by rewriting this as
and your first step of evaluation is to evaluate
.
When you evaluate , you have the following:
and this is undefined. Since you cannot perform the first step of the evaluation, you cannot evaluate .
Answer:
c = - d
Step-by-step explanation:
Multiply both sides by 2 to eliminate the fraction
2A = b(c + d) ← divide both sides by b
= c + d ← subtract d from both sides
- d = c