Answer: Option A is the correct answer, y = x + 2
y - 3 = x-1
Step-by-step explanation:
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!
A right angle has one 90° angle, and the sum of the angles of any triangle is always equals 360°.
Answer:
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Step-by-step explanation:
Given:

To find:
The missing value of m.
Solution:
We have,

Corresponding parts of similar triangles are proportional.

Putting the given values, we get


Multiply both sides by 10.


Therefore, the value of m is 5.