Answer:
Step-by-step explanation:
Given that :
_______low tech _____consumer products
n _______14 ___________ 12
Mean ___ 157 __________218
Variance _ 1563 ________1602
The point estimate of the difference between the means of the two populations :
Difference between the sample mean of low tech and consumer product
Sample mean (low tech) - sample mean (consumer product)
157 - 218
= - 61
Answer:
4(x+x+1+x+2)=156, x=12
Step-by-step explanation:
let the numbers be x, x+1 and x+2.
Now,
4(x+x+1+x+2)=156
4(3x+3)=156
divide both side by 4
3x+3=156/4=39
subtract 3 from both sides
3x=39-3
3x=36
divide both sides by 3
x=36/3=12
x=12
Hence, the smallest of the integers is 12.
Answer:
3 - 3i
Step-by-step explanation:
I think you meant:
6
------------
1 + i
To simplify this, that is, to "rationalize the denominator," multiply both numerator and denominator by the conjugate of 1 + i, which is 1 - I:
6(1 - i)
----------- = 3(1 - i)= 3 - 3i
1 -(-1)
