Answer:
1). 
2). 
Step-by-step explanation:
(1.) 
adding 9 on both sides we get
(2.) 
The subset of A is B = {1, 2} and the proper subset of A is C = {1,2,3,4}
<h3>How to create the Subset and Proper Subset of the set?</h3>
The set is given as:
A = {1,2,3,4}
Subsets of a set are sets that can be found in another set
An instance of this is
B = {1, 2}
Because all the elements of set B are in set A
Proper subsets of a set are sets that contain the exact elements found in another set
An instance of this is
C = {1,2,3,4}
Because set C and set A have the same elements
Read more about subsets at:
brainly.com/question/6948738
#SPJ1
Answer:
ME = 1.96(45)/sqrt(n) 25 = 1.96(45)/sqrt(n) n = (1.96(45)/25)^2 = 6
Step-by-step explanation:
yw
The area is 9.9 or 9 9/10
