Find the exact value.
sec(-330) the answer was -1/2. i am slightly confused using the unit circle and how it got to the conclusion as -1/2. if you can explain this you!

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

What’s the range cuz i can’t find it?