Answer: A 95% confidence interval for the true proportion (p) will be (0.4762136, 0.5637864).
Step-by-step explanation:
Let p = True proportion of people rent their residence.
Given: n= 500
People rent their residence = 260
z-value for 95% confidence level = 1.96
A 95% confidence interval for the true proportion will be :
A 95% confidence interval for the true proportion (p) will be (0.4762136, 0.5637864).
Answer:
Step-by-step explanation:
Using the equation A(t) = 400e-.032t
a) replace t with 4 so A(4) = 400e((-.032)(4))
The hardest part about this is making sure to use order of operations. Be certain it works like this:
A(4) = 400e-.128
A(4) = 400(.8799)
A(4) = 351.9 grams
b) A(8) = 400e((-.032)(8)) = 309.7 grams
c) A(20) = 400e((-.032)(20)) = 210.9 grams
Note here that even after 20 years, not quite half of the original amount is gone. So, we can anticipate that in finding the half life, that our answer should be slightly greater than 20 years.
d) 200 = 400e(-.032t)
Divide both sides of the equation by 400.
.5 = e(-.032t)
Change this to logarithmic form.
Ln .5 = -.032t
-.6931≈ -.032t
t ≈ 21.7 years
Hope this helps!
96(over)100 in a fraction form
Answer:C
Step-by-step explanation:
A scale of one filthiest would be written as 1:50,
this means for every foot of the model would be 50 feet for the actual tower
so you would multiply the dimensions of the tower by 50 get the actual dimensions.
height: 2.25 ft x 50 = 112.50 feet high = 113 feet ( rounded)
width: 1.25 x 50 = 62.5 feet wide = 63 feet (rounded)
B) Ana is correct because 2 + 10 is greater than 10
if it were less than 10 then the last length would not be long enough to reach to the other side
