Answer:
In total, 
permutations of three items can be selected from a group of six distinct elements.
In particular, there are 
ways to order three distinct items.
.
Step-by-step explanation:
The formula 
gives the number of ways to select and order 
items from a group of 
distinct elements.
To select and order three items from a group six distinct elements, let 
and 
. Apply the formula:
.
In other words, there are unique ways to select and order three items (select a permutation of three items) from a group of six distinct elements.
Consider: what's the number of ways to order three distinct items? That's the same as asking: how many ways are there to select and order three items from a group of three distinct elements? Let 
and . Apply the formula for permutation:
.
To find the permutations, start by selecting one element as the first of the list. A tree diagram might be helpful. Refer to the attachment for an example.
Answer:
3,71
Step-by-step explanation:
4,01 - 1,08 ÷ 3,6
4,01 - 0,3
3,71
Answer:
26
Step-by-step explanation:
→ Utilise Pythagoras theorem
a² + b² = c²
→ Substitute in the values
10² + 24² = c²
→ Simplify
100 + 576 = c²
→ Simplify further
676 = c²
→ Square root both sides to isolate c
26 = c
Answer:
The picture is black
Step-by-step explanation:
Dbddndnddnskskskssndjd
Been a bit since i’ve done this kind of problem.
X+4=20
X is the number of hours needed to work, while 4 is the hours already there.
