28.26 i used a calculator
The answer is x=-91/3
Step by step:
3x+91=0
3x=-91
x=-91/3
Answer:
III
Step-by-step explanation:
A function must have 1 y value assigned to each x value.
Answer:
Option C, D and E
Step-by-step explanation:
=> An experiment to determine probability will include a number of trials. (it includes a number of trials. It is done multiple times having multiple trials.)
=> A probability experiment will count the number of times an event occurs. (Probability tells us how many times an event can occur.)
=> Experimental probability can be written in the form of a ratio. (Experimental Probability = 
)
Answer:
4.48%
Step-by-step explanation:
The first thing is to take into account all the possible events as follows
If D is disease present
If ND is disease not present
If P is a positive test
If F is test false
From the statement we have the following information:
P (D) = 0.05% = 0.005
P (P | D) = 99% = 0.99
P (P | ND) = 4% = 0.04
The total number of% positive tests would be the sum of the positive tests when the disease is% present and the positive tests when the disease is not present that it false positives.
Therefore the equation would be like this:
P (P) = P (P | D) * P (D) + P (P | ND) * (1 - P (D))
Replacing the values:
P (P) = 0.99 * 0.005 + 0.04 * (1 - 0.005)
P (P) = 0.00495 + 0.0398
P (P) = 0.04475
What it means is that the probability that they are positive is 4.48%
