If p \displaystyle \rightarrow→ q is a conditional statement, which best represents the contrapositive?

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

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?