If 25% of the people <em>are</em> vaccinated, then 75% of the people are <em>not</em> vaccinated. Of those not vaccinated, each has a 50% chance of contracting the disease. The probability that someone is both not vaccinated and contracts the disease is (0.75)(0.5)=0.375.
The probability that someone is vaccinated and contracts the disease is (0.25)(0.1)=0.025 (it is multiplied by 0.1 because if the vaccine is 90% effective, then there is a 10% chance someone that is vaccinated can contract the disease.
Add these together for the total: 0.375+0.025=0.4
There is a 40% chance that someone chosen at random will contract the disease.
Draw the diameter from point (-1, -5) to point (2, 3).
The triangle has base 3 and height 8.
The diameter of the semicircle is the hypotenuse of the triangle.
The radius is half the diameter.
The total area is the area of the triangle plus the area of the semicircle.
A. false
B. true
C. true
D. true
Answer:
D. Kepa will be paid $4 for every hour of babysitting plus $2 for travel
costs.
Step-by-step explanation:
Are you sure that 7 belongs on the +27? or is it just supposed to be +2?
Answer:
Step-by-step explanation:
simplify:
bx^4+4c-2b-c
= bx^4 + 3c -2b
