encontrar el volumen de una pirámide hexagonal regular, sus aristas laterales miden 6 y forman con el plano de la base ángulos que miden 30 °AYUDA XFA :(

Find the total area for the regular pyramid ( follow the answer set up in the picture)

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.