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.
Answer:
y = 4x - 3
Step-by-step explanation:
Firstly rearrange into the form y = mx + c;
⇒ 
Secondly, find the gradient of the line using the formula for perpendicular lines;
⇒ 
⇒ 
⇒ 
Now substitute into the formula for a straight line;
⇒ 
⇒ 
⇒ 
Answer:
I'm not sure
Step-by-step explanation:
Answer:
13/3, 4.4, 
, 19/4
Step-by-step explanation:
- 5 - 4
= - 9
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