Answer:
Step-by-step explanation:O would say the first answer choice
Define unit vectors along the x-axis and the y-axis as

respectively.
Then the vector from P to Q is

In component form, the vector PQ is (-8,5).
The magnitude of vector PQ is
√[(-8)² + 5²] = √(89) = 9.434
Answer:
The vector PQ is (-8, 5) and its magnitude is √89 (or 9.434).
Answer:
the first answer is 120
Step-by-step explanation:
thats all i got for you fam. im struggling with pearson myself rn
Answer:
480 ways
240 ways
Probability = 1/7
Step-by-step explanation:
Given:
Number of student = 5
Number of teacher = 2
Computation:
1. Number of ways can they line up, side by side, for a picture.
5! × 2! × 2
480 ways
2. Number of ways can they line up if they must have the teachers on both sides of the picture.
5! × 2!
240 ways
3. Probability that the two teachers occupy two of the three middle slots.
³C₂ × 5! × 2!
720 ways
Total number = 7! = 5,040 ways
Probability = 720 / 5,040
Probability = 1/7