Answer:
its 6
Step-by-step explanation:
BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS BALLS
11 choose 7 is equal to 11 choose 4. 11*10*9*8/4/3/2=330.
Answer:
3
Step-by-step explanation:
If 6 numbers have a mean value of 10, it means that the sum of the numbers divided 6 is equal to 10. This can be expressed as:
x÷6=10
x=60
The new number added will be the 7th number and now the mean is 9. You have to ask what number divided by 7 is equal to 9? This can be expressed as:
y÷7=9
y=63
63-60=3
So the new number added is 3
Answer:
8/x = x/20
x^2=160
x=sqrt(160)
x=sqrt(16*10)
x=sqrt(16)*sqrt(10)
x=4*sqrt(10)
Step-by-step explanation:
