To solve this problem, we make use of the formula of
combination.
nCr = n! / r! (n – r)!
where n is the total number of subject teachers and r is
the number of subjects r = 1
For the English class n = 3
3C1 = 3! / 1! (3 – 1)! = 3
For the Algebra class n = 4
4C1 = 4! / 1! (4 – 1)! = 4
For the Biology class n = 2
2C1 = 2! / 1! (2 – 1)! = 2
The total number of different schedules would be the
product of the three combinations:
total combinations possible = 3 * 4 * 2
total combinations possible = 24
Answer:
0.034 L/min
Step-by-step explanation:
The rate of reaction is the volume change (ΔV) divided by the time(t) and divided by the coefficient of the compound in the reaction. The coefficient of O₂ is 1, so:
R = (0.36 - 0.02)/10
R = 0.034 L/min
Answer:
(4s-3)ft
Step-by-step explanation:
The 3 sides of the room will be "s" ft long. The 4th side, the one with the doorway will be "s-3" ft long, the -3 because of the doorway. Then you simply add all the sides of the doorway to get the length for the metal strip.
1/2 * 6 +9 - (18/6)
1/2 * 6 +9- 3
3+9-3
12-3
9
Hope this helps! :)