Answer:
first one
Step-by-step explanation:
We have the following equation:
3x2 + 7x + 4 = 0
Using the resolver we have:
x = (- b +/- root (b2 - 4ac)) / 2a
Substituting values we have:
x = (- (7) +/- root ((7) 2 - 4 (3) (4))) / 2 (3)
Rewriting:
x = (- 7 +/- root (49 - 48)) / 6
x = (- 7 +/- root (1)) / 6
x = (- 7 +/- 1) / 6
The results are:
x = (- 7 + 1) / 6 = -6/6 = -1
x = (- 7 - 1) / 6 = -8 / 6 = -4/3
Answer:
x = -1
x = -4/3
option C and D
Answer:
3003
Step-by-step explanation:
We want to find out how many ways we can choose 10 players among 15 players (since the goalie is not interchangeable)
The number of different lineups you can have can be found by using combination:
![^{15}C_{10} = \frac{15!}{(15 - 10)! 10!}\\ \\= \frac{15!}{5! * 10!} \\\\= 3003](https://tex.z-dn.net/?f=%5E%7B15%7DC_%7B10%7D%20%3D%20%5Cfrac%7B15%21%7D%7B%2815%20-%2010%29%21%2010%21%7D%5C%5C%20%5C%5C%3D%20%5Cfrac%7B15%21%7D%7B5%21%20%2A%2010%21%7D%20%5C%5C%5C%5C%3D%203003)
There are 3003 different lineups that can be chosen.
Answer:
my 12 inch pito that pito good