I believe $1, two of the friends left, if it's not the correct answer I'm sorry.
Exactly one activity:
246None of the activities :
1At least one activity:
74Snowboarding and Ice skating but not skiing:
5Snowboarding or ice skating but not skiing:
132.
Only skiing :
119.
The diagram is in the attachment.
This looks like scalar matrix multiplication. The idea here is to multiply the scalar 3 by each item inside the matrix.
Doing so leads to the answer [3 -12 15 -21]
Side note: I'm assuming the matrix given to you has 1 row and 4 columns.
Answer:
whats the question? its a little blurry and hard to see
Step-by-step explanation:
Answer:
c=√a²+b²
Step-by-step explanation:
You can use this equation to solve it.