Answer:
The right solution is "0.196".
Step-by-step explanation:
The given values are:
Standard deviation,

Sample size,

Confidence level,
%

Now,
For 


then,



The margin or error will be:
⇒ 
On substituting the values, we get
= 
= 
= 
I got b
for my
answer ok ??????????????????????
9 + n = -2
-9 -9 Get rid of 9 from both sides
n = -2 - 9
n = -11
No solution
========
The lines are parallel
eg
y = 2x + 3; y = 2x + 5
Infinite solutions
============
When one equation reduces to the second one.
2y = 10x + 6
y = 5x + 3 When you divide the first one by 2, you get the second one.
The expression V − E + F is an illustration of the Euler's formula.
The expression V − E + F is always 2
<h3>How to determine the true statement?</h3>
The equation is given as:
V - E + F = 2
Where:
- V represents the vertices
- E represents the edges
- F represents the faces
According to the Euler's formula, the relationship between V, E and F is:
V + F = 2 + E
Subtract E from both sides
V - E + F = 2
Hence, the expression V − E + F is always 2
Read more about Euler's formula at:
brainly.com/question/12274716