Step-by-step explanation:
sina = -√3/2
=±1/2
Since, π<a<3π/2
cos a = -1/2
OptionB
I used the distance formula, the answer is 15
For number 6 I know the answer is 34 beacuse you add 6, 13, and 15 together to get 34.
First of all, we need to know what a function is.
A function is a binary relation between two sets that
Answer:
3003
Step-by-step explanation:
The number of differents menus containing 10 main courses that the restaurant can make if it has 15 main courses from which to chose is calculated through the combination: 15C10. The formula of the combination is: nCr = n! / ((r!) x(n - r)!)
Where r=10 and n=15
Substituting the values to the equation: 15C10 = 15! / (10!)x(10 - 5)! = 3003
Then there are 3003 different menus that a restaurant can makeif it has 15 main courses from which to choose.
