This is a combination problem.
The formula is n! / (r!(n-r)!
where n is the total number of people and r is the number of people to be picked.
n = 15, r = 4
15! / (4!(15-4)!)
15! / (4!*11!)
Total combinations = 1,365
F(x)=2sin(1/2x) is the answer
Degrees (not like celsius or temperature though)
Answer:
22
Step-by-step explanation:
substitute:
5(7) - 3(8) + 11=0
35 - 24 + 11 = 0
=22
In the given interval 1 < x < 6, the function is decreasing.
As seen from the graph, the value of function is lower at every next value of x than its previous value. For example value function is lower at x = 2 as compared to x = 1. Likewise the value is lower at x = 3 than x = 1 and x = 2 and this continues till x= 6. Therefore, the function is decreasing.
Another way to look at the problem is see the slope of the function. The line is constantly falling down, which means it is a decreasing function.