The figure shows the dimensions of a room. How much carpet is needed to cover the floor of the room?
1 answer:
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hence, last option is right
Answer:
x ≠ - 5
Step-by-step explanation:
Given
f(x) =
The denominator of f(x) cannot be zero as this would make f(x) undefined.
Equating the denominator to zero and solving gives the value that x cannot be.
solve : x + 5 = 0 ⇒ x = - 5 ← excluded value