What is the value of 'n' in the equation -1/2(2n+4)+6=-9+4(2n+1)
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Answer:
C
Step-by-step explanation:
Using Pythagoras' identity to determine if the triangle is right
The square of the longest side should equal the sum of the squares on the other 2 sides, that is
QS² = RS² + QR² = 8² + 5² = 64 + 25 = 89 ( take the square root of both sides )
QS =
Δ QRS is not right as QS would have to be