Find the measure of the third side of the given triangle. P stands for perimeter and has the value 12ײ-7×+9. (Hint:the perimeter is the sum if the three sides of the triangle.) let S represent the measure of the third side. please answer this if u know the right answer​

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

Need solving this second acceleration problem.