4. Terry uses a ladder that is 12 feet tall. To be safe the ladder must make an angle of elevation of between 70 - 85 degrees to be safe. If he places the ladder 3 feet from
the wall, is it safe?

This is about circle theorems. someone asap : (

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)