Which of the following equations have exactly one solution? Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
-13x+12=13x-13−13x+12=13x−13minus, 13, x, plus, 12, equals, 13, x, minus, 13

(Choice B, Checked)
B
-13x+12=13x+13−13x+12=13x+13minus, 13, x, plus, 12, equals, 13, x, plus, 13

(Choice C, Checked)
C
12x+12=13x-1212x+12=13x−1212, x, plus, 12, equals, 13, x, minus, 12

(Choice D)
D
12x+12=13x+1212x+12=13x+12

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?