Answer:
(1,155, 1.545).
Step-by-step explanation:
From Normal distribution tables the z score for 95% CI = 1.96.
Confidence Interval
= 1.35 +/- 1.96 * 0.63/√40
= 1.35 +/- 0.195
= (1,155, 1.545).
20
25^2=15^2+x^2. x=20
hence solution for x in the equation is x= 1/2
4x - 3+5 = 2x + 7 - 8x
4x +2 = -6x +7
taking x to the other side then we get
4x+6x = -2+7
10x = 5
divide both side by 10
10x/10 =5/10
x= 1/2
