Answer:
x(x-4)
Step-by-step explanation:
Answer:
1.8 or less
Step-by-step explanation:
girls 1.8 or less
Answer: There is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.
Step-by-step explanation:
Total number of students = 8
Number of student who has passed Exam P/1 = 1
Number of student who has passed Exam FM/2 = 1
No student has passed more than one exam.
According to question, exactly three students from a randomly chose group of four students have not passed Exam P/1 or Exam FM/2.
So, Probability will be

Hence, there is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.
Exercise 1:
The angle in the low left corner is supplementar with the external angle. Since the external angle is 105, the inner angle is 75.
Since in every triangle the inner angles sum to 180, we have

Exercise 2:
Again, you need to use the fact that in every triangle, the sum on the inner angles is always 180.
Exercise 3:
Since PQ and BC are parallel, triangles APQ e ABC are similar. This means that their side are in the same proportion, so

Plug the known values of AB, AP and AC and solve for AQ:
