Nathan had an infection, and his doctor wanted him to take penicillin. because nathan’s father and paternal grandfather were allergic to penicillin, nathan has a 75% chance of having the same allergy. the doctor performed a skin test to see whether nathan would react to it. the test is 98% accurate. if the test predicts that nathan is not allergic to penicillin, what is the probability after the test that nathan is not allergic to the drug?
a.
0.1135
b.
0.2450
c.
0.9423
d.
0.9932

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

both equations and proportions are better.

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

ddd

step-by-step explanation: