Solve h^2-2h- 2=0 and round answer to the nearest hundredth

h1=2.75 and h2=-0,75

Step-by-step explanation:

You need to use the cuadratic formula for this case (see apex)

Best regards

63.68 months

Step-by-step explanation:

We solve this question with z score formula

z = (x-μ)/σ, where

x is the raw score ???

μ is the population mean = 4 years

Since the final answer would be in months, we would convert mean to months

= 1 year = 12 months

4 years = x months

= 12 × 4 = 48 months

σ is the population standard deviation = 8 months

z = the z score for 95% confidence interval = 1.96

1.96 = x - 48/8

1.96 × 8 = x - 48

15.68 = x - 48

x = 15.68 + 48

x = 63.68 months