Find the n^th derivative e^x since sin2x​

Find the value of x that will make l ll m

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?