Answer: 0.701
Step-by-step explanation:
Formula : 
, where 
significance level , 
Population standard deviation, n= sample size.
As per given, n= 22
Critical z- value for 90% confidence level : 
Then,
Hence , error bound (EBM) of the confidence interval with a 90% confidence level= ± 0.701
Answer:
70910 (c)
Step-by-step explanation:
You move the decimal point to the right each time.
Tangent always meets radius at 90° angle.
Angle ABC = 90° so Pythagoras' theorem applies.
r² + 4² = (r+2)²
r² + 16 = r² + 4r + 4
12 = 4r
r = 3
Answer:
Step-by-step explanation:
24x = 8*3*x
16 = 8* 2
Greatest common factor = 8
24x - 16 = 8(3x - 2)
