<span>expressions for the mean and standard deviation of y if this variable is determined by the expression y
</span>
Answer:
95% confidence interval of the mean level of random exposure in tombs in the region.
(2746.868 , 4191.132)
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
Given sample size 'n'= 12
Mean of the sample x⁻ = 3,469
and standard deviation of the sample 's' = 1,135
<em>95% confidence intervals are determined by</em>
Degrees of freedom = n-1 = 12-1= 11
<u><em>Step(ii)</em></u>:-
<em>95% confidence intervals are determined by</em>
( 3469-722.132 , 3469 +722.132)
(2746.868 , 4191.132)
Answer:
I'd say Yev's description is best because it's the most specific to what it actually is in terms of science, while everyone else's descriptions are more like examples of different types and stages of energy, and where it could be found.
Hope this makes sense to ya :)
Ok so there are no real solutions for xy=15000 and x+y=5
there are immaginary solutions though so
xy=15000
x+y=5
x+y=5
y=5-x
x(5-x)=15000
-x^2+5x=15000
0=x^2-5x+15000
quadriacic formula
if ax^2+bx+c=0, then
x=
x^2-5x+15000
a=1
b=-5
c=15000
x=
x=
x=
x=
so the numbers are
and