4a.
So one property of a rhombus is that all sides are congruent to each other. Using this information, we just need to divide the perimeter by 4, in which the quotient is 6. In short, the measure of FI is 6 units.
4b.
Another property of a rhombus is that opposite angles are congruent and that their diagonals bisect the angles. Since we see ∠HIJ is 72°, just multiply it by 2 to get the measure of ∠FGH. The measure of ∠FGH is 144°.
Answer:x=6, y=-9
Step-by-step explanation:
7x+2y=24.....(1)
8x+2y=30.....(2)
(2) minus (1) we have
8x-7x+2y-2y=30-24
X=6
Substitute x=6 in (1), we have
7x6+2y=24
42+2y=24
2y=24-42
2y=-18
Y= - 18/2
Y=-9
You would need to add 7x to both sides.
All the probabilities are given for the three different scenarios in men and women: people who smoke, people who develop lung cancer, and people who develop lung cancer who are also smokers. Then, these are even classified in terms of gender.
But the final question only has to do with men who are smokers that develop lung cancer. So, I think all the other data are only there for the purpose of red herring. The answer is already there, but you just have to find it among the others. First, you ignore all the probabilities involving women because we only want the men. Then, you find the probability of men that have lung cancer being smokers. The answer is 90%.
