Bad gums may mean a bad heart. researchers discovered that 81% of people who have suffered a heart attack has periodontal disease, an inflammation of the gums. only 30% of healthy people have this disease. suppose that in a certain community heart attacks are quite rare, occurring with only 15% probability.

if someone has periodontal disease, what is the probability that he or she will have a heart attack?

Select all the correct statements. the amount in dollars an electrician charges in terms of the number of hours worked is represented by the function y = 22x + 42. from the function, identify all the phrases that hold true for the situation. the electrician charges an initial fee of $22 the y-variable represents the number of hours the electrician charges an initial fee of $42 the electrician charges $22 for every hour worked the x-variable represents the electricians charges in dollars the electrician charges $42 for every hour worked

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?