Answer: 1.12
Step-by-step explanation:
The confidence interval for the mean
and margin of error E is given by :-
--------------(1)
The given confidence interval : (0.21, 2.45) -------------(2)
From (1) and (2), we have

Subtract equation (3) from (4), we get

Hence, the margin of error is 1.12 .
Answer:
X= -2
Step-by-step explanation:
You want to get x alone on the right side of the equal sign so subrtact five from that side and then subrtact five from -11. The divide.
14x - (2x - y) - y
14x + (-1(2x - y)) - y
14x + (-1(2x) - 1(-y)) - y
14x + (-2x + y) - y
14x + 1(-2x + y) - y
14x + 1(-2x) + 1(y) - y
14x - 2x + y - y
14x - 2x
12x
1:1 is a square ratio rather than horizontally long rectangle, which would be similar to 720x1080
The angles are complementary.