Answer:
C
Step-by-step explanation:
Let say for example, the triangle is named ∆ABC, and the two angles given are <A and <B with a given side, c, opposite to the third angle (<C).
Since sum of triangle = 180°, we can find the third angle by saying:
m<C = 180 - (m<A + m<B).
Having found the third angle measure, <C, we can mow apply the Law of Sines to find the length of the other two sides (a and b) that are opposite to <A and <B respectively.
It helps u cuz u need to know how 2 isolate the variable or something in math terms
Hope i helped!!!=-O =-O :-P :-P :-P
Answer: ( 1.25, 1.55)
Therefore at 95% confidence interval (a,b) = ( 1.25, 1.55)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean gain x = 1.4
Standard deviation r = 0.5
Number of samples n = 42
Confidence interval = 95%
z(at 95% confidence) = 1.96
Substituting the values we have;
1.4+/-1.96(0.5/√42)
1.4+/-1.96(0.0772)
1.4+/-0.1512
1.4+/-0.15
= ( 1.25, 1.55)
Therefore at 95% confidence interval (a,b) = ( 1.25, 1.55)
