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andrew11 [14]
2 years ago
9

If x=6 and y=-3 then find (xy)²​

Mathematics
2 answers:
rusak2 [61]2 years ago
7 0
(6 x -3)^2 first you multiply 6 and -3 which equals to -18. Then (-18)^2 will equal 324. This is because you square -18. Squaring -18 is just multiplying -18 by -18 and two negatives result in a positive answer so that’s why it’s positive 324
aniked [119]2 years ago
6 0
324



Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out
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Firlakuza [10]

Answer:

75%

Step-by-step explanation:

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3 0
3 years ago
A rectangular enclosure is to be created using 82m rope.
atroni [7]
Let
x-----> the length of rectangle
y-----> the width of rectangle

we know that 
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substitute equation 1 in the area formula
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using a graph tool
see the attached figure

the vertex is the point (20.5,420.25)
that means
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the area is 420.25 m²

y=420.25/20.5----> 20.5 m

the dimensions are
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the answer part 1) 
<span>the dimensions of the rectangular with Maximum area is a square with length side 20.5 meters
</span>
Part 2)<span>b) Suppose 41 barriers each 2m long, are used instead. Can the same area be enclosed?
</span>divide the length side of the square by 2
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the dimensions are 10 barriers x 10 barriers
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the area enclosed with barriers is =20*20----> 400 m²

400 m² < 420.25 m²
so

the answer Part 2) is 
<span>the area enclosed by the barriers is less than the area enclosed by the rope
</span>
Part 3)<span>How much more area can be enclosed if the rope is used instead of the barriers
</span>
area using the rope=420.25 m²
area using the barriers=400 m²

420.25-400=20.25 m²

the answer part 3) is
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3 years ago
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luda_lava [24]

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