A spherical ballon is being inflated in such a way that it’s radius is increasing at a rate of 1/2cm/s. how fast is the volume increasing when the radius is 3cm?

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

Find the nonpermissible replacement for binthis expression. b2/5b +5

What is the area of a rectangle with vertices (-8,-2), (-3,-2), (-3,-6), and (-8,-6)? units