What is the range of the function on the graph? 1. All real numbers
2. All real numbers less than or equal to -1
3. All real numbers less than or equal to 3
4. All real numbers less than or equal to 0

Given: f(x) = 2x + 5 and g(x) = x2 and h(x) = -2x h(g(f( = x2+ vx+ x + y

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

Hi, can anyone show me how to do this problem? 100 points for this. in advance