The angle of elevation from a person on the boat looking up to the lighthouse is _ degrees. If the lighthouse is 25 meters tall, the boat is _
meters away from the base of the lighthouse.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

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