Answer:

Step-by-step explanation:
From the given information:
Total number of students, 
The choices were: Chess(C), Swimming(S), and Football(F).
Everyone liked at least one sport except 7 kids, 
Chess is not an active sport; and
10 children liked Chess only, 
The probability that a randomly-chosen child from this group does not like active kinds of sport is the Probability that a student plays chess only or like no kind of sport at all.

The farmer has 17 hens.
<h3>What is a linear equation in two variables ?</h3>
An equation is linear if has highest degree of 1 and it has two variables.Generally they are in x and y.
For example -: 2x + 3y = 10
According to the given question a farmer has some hens and goats. He counts a total of 60 eyes and 86 feet between them.
Let us denote Hens by H and Goats by G.
We know both of them has 2 eyes each and we also know that a Hen has 2 legs and a Goat has 4 legs.
There fore the given data we can form two equations.
2H + 2G = 60 and 2H + 4G = 86.
Solving these two equations we have G = 13 and H = 17.
learn more more about linear equation in two variables here :
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C. Integers and Rational Numbers.
Answer:
1.) Drawing a king or a queen.
Step-by-step explanation:
1.) Drawing a king or a queen.
You cannot get a king and a queen at the same time= mutually exclusive
2.) Drawing a club or a black card.
King of clubs is both a club and a black card
3.) Drawing a king or a heart.
king of hearts is both a heart and a king
4.) Drawing a face card or a heart
queen of hearts is a heart and a face card
Answer:
C. Theorems are sometimes false.