Answer:
5
Step-by-step explanation:
Answer:5
Start striking off the numbers one from the left and then from the right continuously until you're left with a number in the middle
X^2 - 7x + 12 = 0
x^2 - 4x - 3x + 12 = 0
x (x - 4) -3 ( x - 4) = 0
(x - 4) (x - 3) = 0
x = 3 , 4
Check the answer by plugging in 3 and 4 for x, if the equation equals zero then you have your answer.
Answer:
20
Step-by-step explanation:
20 because 1 equals 20 I know this because 80 divided by 4 equals 20 and 100 divided by 5 equals 20 I could go on down to seven but by now you get my point.
Answer:
Distinct ways in which they all can form the teams for the class = n(n-1)
Step-by-step explanation:
Total numbers of students = n (even number)
Number of student in each team = 2
Number of distinct ways are there to form the teams for the class:
where = n = number of elements = n
k = number of elements choose = 2
