D, Because 7/15 + 9/15 is 16/15 + 4/15 =20/15 which equals 1 5/15 which turns into 1 1/3
A, 1/21 + 2/21 = 3/21 and that equals 1/7
C, 3/14+3/12 turns into 3/14+5/14= 10/14 - 8/14= 2/14=1/7
Answer:
0.513 = 51.3% probability of being a female.
Step-by-step explanation:
We are given the following formula:
![P(F \cup C) = P(F) + P(C) - P(F \cap C)](https://tex.z-dn.net/?f=P%28F%20%5Ccup%20C%29%20%3D%20P%28F%29%20%2B%20P%28C%29%20-%20P%28F%20%5Ccap%20C%29)
In which:
Event F: Female
Event C: Red-green color blindness.
Probability of a Female
We have to find P(F), which is given by:
![P(F) = P(F \cup C) + P(F \cap C) - P(C)](https://tex.z-dn.net/?f=P%28F%29%20%3D%20P%28F%20%5Ccup%20C%29%20%2B%20P%28F%20%5Ccap%20C%29%20-%20P%28C%29)
We are given by:
![P(C) = 0.039, P(F \cap C) = 0.004, P(F \cup C) = 0.548](https://tex.z-dn.net/?f=P%28C%29%20%3D%200.039%2C%20P%28F%20%5Ccap%20C%29%20%3D%200.004%2C%20P%28F%20%5Ccup%20C%29%20%3D%200.548)
So
![P(F) = P(F \cup C) + P(F \cap C) - P(C) = 0.548 + 0.004 - 0.039 = 0.513](https://tex.z-dn.net/?f=P%28F%29%20%3D%20P%28F%20%5Ccup%20C%29%20%2B%20P%28F%20%5Ccap%20C%29%20-%20P%28C%29%20%3D%200.548%20%2B%200.004%20-%200.039%20%3D%200.513)
0.513 = 51.3% probability of being a female.
The value of n from the given expression is 5.5
<h3>Solution to linear equation and fractions</h3>
Fractions are expression written as a ratio of two integers. The linear equation on the other hand has a leading degree of 1.
Given the equation below;
n/11 = 3.5/7
Simplify to have
n/11 = 1/2
Cross multiply the given result to have:
11 = 2n
Swap
2n = 11
Divide both sides by 2 to have;
2n/2 = 11/2
n = 5.5
Hence the value of n from the given expression is 5.5
Learn more on linear equation and fraction here: brainly.com/question/11955314
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In order to round 25.691 to the greatest place or the nearest whole number, first start at the last digit behind the decimal, in the case, being the 1. When it comes to things like this, if the digit is 4&under meaning its the number 4,3,2,1 or 0. If it is 5&up, that means it could be 5-9, making the digit go up (but if its 2, then the digit just goes away, you wont have to worry about that one specific number).
Next step is to round the 9 which makes the 6 go up one digit (meaning it turns into a 7). Now, when you round the seven, it will make the whole number go up one digit, but if you want to round that as well, to start, it's first rounding equaled up to 26. If you're rounding it to a whole tens number, it would be 30. I hope that this helps you understand this subject or topic much better! :3