There are 19 people total, and groups of four are being asked of us. We can use the formula for permutations or combinations.
Permutations:

Combinations:

Where in both scenarios, there are <em>n</em> objects being chosen at <em>r</em> times.
19 P 4 is 93024
19 C 4 is 3876
It all depends on whether order matters with group placement; if it does, your answer is
93024, if not, then your answer is
3876.:)
Answer:
There is exactly 1 solution and it is a double root.
Step-by-step explanation:
To find this, factor the equation and solve.
x^2 + 10x - 25 = 0
(x - 5)(x - 5) = 0
Now that we have this factored, we can set each parenthesis equal to 0 and solve separately.
x - 5 = 0
x = 5
x - 5 = 0
x = 5
Because there are two of the exact same answer, we know it to be a double root.
324 in^2
_________________________________
Answer:
247 ft is the correct answer
Answer:
x=7
Step-by-step explanation:
4 +3x = 6x-8 +3 -12
4 +3x = 6x-17
-3x -3x
4 = 3x -17
+17 +17
21 = 3x
divide by 3 on both sides
7 = x
switch the side that x is on because teachers like that
x = 7