Answer:
A 32.1
Step-by-step explanation:
Given two points
)
distance between to points = d = 
Now B is (-4,5) and A is (2,0)
So AB = 
C is (4,10)
So BC = 
D is (8,7)
So CD = 
E is (4,5)
So DE = 
and AE = 
Perimeter = 7.810 + 9.433 + 5 + 4.472 + 5.385 = 32.1
Answer:
So the answer for this case would be n=2663 rounded up to the nearest integer
Step-by-step explanation:
We have the following info:
margin of error desired
the standard deviation for this case
The margin of error is given by this formula:
(a)
And on this case we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance is
. And for this case would be
, replacing into formula (b) we got:
So the answer for this case would be n=2663 rounded up to the nearest integer
I think that the mass will be 3 i hope it help
Answer:
C
Step-by-step explanation:
Jan because if you cross multiply thats how you get it right