Answer:
Step-by-step explanation:
We want to combine alike terms so
-2/3c+14c & -9/5+3/10
14c-2/3
Multiply 14/1 by 3/3 to get the denominators the same
Subtract
simplify
now
Multiply 9/5 by 2/2
Subtract
Simplify
put both together
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
Answer:
The probability that a vehicle would be involved in a tire-related accident is
Step-by-step explanation:
We need to calculate the probability that a vehicule would be involved in a tire-related accident.
We know that, given a tire-related accident (TRA), the probability of it being deadly (D) is 0.05. That is:
We also know that the probability of being involved in a deadly tire-related accident is 0.000004
. We can express that as the probability of having a TRA multiplied by the probability of it being deadly:
Merging the two expressions we have:
9514 1404 393
Answer:
136
Step-by-step explanation:
The attached chart shows the result of using the numbers in the problem statement to calculate the percentage of the population in each category.
95% accuracy on infected individuals is assumed to mean that 95% of the 2% who are infected return a positive test result. The other 5% return a negative test result.
Similarly, 90% accuracy on uninfected individuals is assumed to mean that 90% of the 98% who are not infected will return a negative test result, and the remaining 10% of those 98% will return a (false) positive test result.
Then of the 11.7% who return a positive test result, only 1.9% are actually infected. This fraction is a/b = 19/117, so ...
a + b = 19 + 117 = 136
_____
<em>Additional comment</em>
When forming ratios of percentages, one must be very clear about the base of the percentage. Above, the base for every percentage is the entire population of mathletes. The fraction 19/117 is the fraction of those who tested positive that are actually infected (about 16.2% of positives).
35 degrees
Triangles should typically add all up to 180 degrees
Answer:
2.28871.0005^14
Step-by-step explanation: