Step-by-step explanation:
7, 4+2×12÷6-8=0
8, 9÷3+6×2=15
9, 3+4-6+2×35=71
12, 3/5 - 1/3= 4/15
The others one I'm not too sure!!
Answer:
a.4845ways.
b. 14535ways.
c. 3990ways
d. 1140ways
Step-by-step explanation:
Given data:
No of flavors available to customers = 20.
Solution:
This is permutation and combinations problem,
(a) how many ways can the customers choose 4 different ice creams if they are all of different flavors.
20C4
= n!/(n-k)!)k!
= 20!/(20-4)!)4!
= 20!/(16)!)4!
= 4845ways.
b) are not necessarily of different flavors
Let’s say any two same flavors can be chosen.
20C4 * 3!/2!
= 4845 * 3
= 14535ways.
c) contain only 2 or 3 flavors.
= 20C3 * 3!/2!
= 1140 * 3
= 3420
20C2 * 3
= 190 * 3
= 570.
No of 2 or 3 different flavors
= 3420 + 570
= 3990ways.
d) contain 3 different flavors.
20C3
= n!/(n-k)!)k!
= 20!/(20-3)!)3!
= 1140ways.
The answer is A.y^2+4xy+2
Answer:
12
Step-by-step explanation:
The sequence starts at 48, and goes down 4 with each term. That means that we just need to subtract 4 from 48 12 times.
Hope that this helps!
Answer:
2261.46
Step-by-step explanation:
51142% = 5114200
√ 5114200 = 2261.46