3 years ago

If the length of the side of a square is 3×-y what is the area of the square in terms of x and y

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

5 0

(3x -y)(3x-y )= 9x^2 - 6xy + y^2

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The energy saving from recycling one glass bottle will power the oven for 7.5 minutes. Glass used for recycling costs 5p per kg.

natulia [17]

Okay, it's 24p.
1. Let's find out how many bottles will it take to power the oven for 6 hours.
6x60 will be 360 (minutes). Then we divide 360 by 7.5. Move the decimal to the right on both sides. 3600 divided by 75. It's 48 bottles for 6 hours.
2. 1 kg=1000 g. 1 bottle is 500 g. 48 divided by 2. 24p.

I hope that was helpful. Have a great day.

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3 years ago

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Justin draws a square with an area of 150 square centimeters. What is the approximate length, in centimeters, of one side of the

Vinil7 [7]

What we know:
Shape is square
Area= 150 cm²
Area=s²

What we need to find: s=side of square

Area=s²
150=s²
√150=√s²
√150=s
s≈12 cm
C. 12cm

Remember when finding the square root of a number you get a positive and negative solution. In this case, length is positive so we do not need the negative solution.

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3 years ago

Im lowkey begging at this point . I might take Algebra again if I dont pass XC Can you please solve these few problems and expla

Lemur [1.5K]

Answer:

7)B

8) C

9) A

Step-by-step explanation: