Answers:
Domain =
Range =
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Explanation:
The domain is the set of allowed x value inputs. We note that the left-most point is when x = -5, and this point has a closed or filled in endpoint, so we're including this x value in the domain.
The left piece has its other endpoint at x = -2, so the interval is part of the domain. We write that as is part of the domain's answer. The other part is . We include x = 1 but exclude x = 5 as there's a hole here.
Use the union symbol to glue the two intervals together and we end up with as the full domain.
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The range is the set of possible y values. The lowest point is when y = -4, but we exclude this endpoint since there's an open hole here. The highest point is when y = 4. The range is which we write as
Since there are no gaps in the range, we don't use any union symbols here. Any y value between -4 and 4 is possible, other than y = -4 itself.
Answer:
<h2>a)4√3</h2>
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
<h3>tips and formulas:</h3>
- tan(60°)=√3
- tan(a)=opp/adj
<h3>let's solve:</h3>
Answer:
3.
Step-by-step explanation:
3x + 6(2x – 2)
We can obtain the factor in the above equation as follow:
3x + 6(2x – 2)
Clear the bracket
3x + 12x – 12
15x – 12
Factorise
3(5x – 4)
From the above illustration, we can see that the factor of the equation
3x + 6(2x – 2) is 3.
EDIT:
Order of operations doesn't matter in addition. So you can add them in any order.