Ptg has side lengths of 18 cm, 27 cm, and 13 cm. which type of triangle is ptg? the answer is obtuse.
i found the answer but if anyone needs it here ya go

Ineed with number 17 i don’t get it at alll

Write the linear inequality shown in the graph. the gray area represents the shaded region. y> -3y+5 y> 3x-5 y< -3x+5 y< 3x-5

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?