Answer:
13/20
Step-by-step explanation:
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(2/5×4/4)+(1/4×5/5)=?
Complete the multiplication and the equation becomes
8/20+5/20=?
The two fractions now have like denominators so you can add the numerators.
Then:
8+5/20=13/20
13/20 cannot be reduced, therefore 2/5 + 1/4 = 13/20
To me, it seems like you should make the 12 x and see what you can get for y but I could be wrong.
Answer:
the probability is 9/71 ( 12.67%)
Step-by-step explanation:
defining the event Te= the test indicates tuberculosis , then the probability is:
P(Te)= probability of choosing a subject that has tuberculosis * probability that the test indicates tuberculosis given that a subject with tuberculosis was chosen + probability of choosing a subject that has not tuberculosis * probability that the test indicates tuberculosis given that a subject that has not tuberculosis was chosen = 8/1000 * 90/100 + 992/1000 * 5/100 = 0.0568
After this, we can use the theorem of Bayes for conditional probability. Then defining the event Tu= choosing a subject that has tuberculosis, we have
P(Tu/Te)= P(Tu∩Te)/P(Te) = 8/1000 * 90/100 / 0.0568 = 9/71 ( 12.67%)
where
P(Tu∩Te) = probability that a subject with tuberculosis is chosen and the test indicates tuberculosis
P(Tu/Te)= probability that a subject with tuberculosis was chosen given that the test indicates tuberculosis
Answer:
<em>How to Teach Multiplication in 6 Easy Steps:
</em>
1. Relate multiplication to addition. ...
2. Start with the multiples of zero and one. ...
3. Cover the multiplication table, starting with the “easy” numbers. ...
4. Show how the commutative property makes things easier. ...
5. Break memorization down into easy steps. ...
6. Introduce the associative and distributive properties.
7. OR you can use a <u>calculator</u>.
- TAKEN FROM PRODIGY.COM
- NO ONE SHOULD REPORT ME BECAUSE I GAVE CREDIT TO THE WEBSITE THAT GAVE THE ANSWER, WHICH WAS PRODIGY.COM
I hope this helps!
<h2><u>
PLEASE MARK BRAINLIEST!</u></h2>