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dedylja [7]
2 years ago
14

two supplementary angles consist of one acute angle and one obtuse angle. a)always b)sometimes c) never

Mathematics
1 answer:
mel-nik [20]2 years ago
4 0

the sum of supplementary angles equals 180°

you can have an acute angle (less than 90°) + an obtuse angle (greater than 90°) equal to 180°

But you can also have a right angle (equal to 90°) + another right angle equal to 180°

Answer: (b) sometimes

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Determine the solutuon for x^2-3x-28>0
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Answer:

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Step-by-step explanation:

We first determine the critical points by solving x^2 - 3x - 28 = 0:

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so the critical points are  -4 and  7.

Create a Table   (pos = positive and neg = negative):

Value  of           x< - 4        -4  < x < 7         x > 7    

---------------------|----------- |--------------------- |---------------------

x + 4                  NEG           POS                 POS

x - 7                    NEG           NEG                POS

(x + 4)(x - 7)         POS           NEG                POS

So the function is positive (>0) for x < -4 or x > 7.

You can also do this by drawing the graph of the function.

6 0
3 years ago
Why is 1+(-5) equal to -4
erica [24]

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Answer:

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Step-by-step explanation:

1/8th of 24 is 3 which leaves 21 remaining

2/3 of 21 is 14 as each third is 7

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