Maths-
General
Easy
Question
Find the value of x. Identify the theorem used to find the answer.
Hint:
- Mid-point theorem:
- According to mid-point theorem, in triangle, the line segment which joins the midpoint of two sides is parallel to third side and is equal to half of third side,
The correct answer is: x = 12.
Answer:
- Step by step explanation:
- Given:
From figure,
BM = MC,
hence M is midpoint of BC.
BN = NA,
hence N is midpoint of AB.
MN = x
AC = 24
- Step 1:
In 
The line segment MN joins midpoint of AB and BC
So,
According to midpoint theorem,
MN is parallel to AC and
MN = 
MN = 
MN = 12
∴ x = 12.
Final Answer:
x = 12.
- Given:
hence N is midpoint of AB.
Final Answer:
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37. In an academic contest correct answers earn 12 points and incorrect answers lose 5
points. In the final round, school A starts with 165 points and gives the same number
of correct and incorrect answers. School B starts with 65 points and gives no incorrect answers and the same number of correct answers as school A. The game ends with the two schools tied.
i)Which equation models the scoring in the final round and the outcome of the contest
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¶ Different Types of Variables
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¶Unrelated Variables: The values of an independent variable in an algebraic equation are unaffected by changes. Suppose an algebraic equation has two variables, x and y, and each x value is related to any other y value. In that case, x is an independent variable, and y is a dependent variable.
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