Solving Surface Area Problems hi, please help me with this question i really need some help
1 answer:
The surface area of the rectangular prism is of 144 m².
<h3>What is a rectangular prism?</h3>A rectangular prism is a solid that has three dimensions:
- Length l.
- Width w.
- Height h.
It's surface area is given by:
In this problem, the dimensions are: .
Hence:
The surface area of the rectangular prism is of 144 m².
You can learn more about surface area of a rectangular prism at brainly.com/question/17223528
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The solution to the system of equation are x = -2 and y = 3
<h3>How to find the solution of a system of equation?</h3>x + 3y = 7
2x + 4y = 8
Let's isolate x in the first equation
x = 7 - 3y
substitute the value of x in the second equation.
Therefore,
2(7 - 3y) + 4y = 8
14 - 6y + 4y = 8
-2y = 8 - 14
-2y = -6
y = -6 / -2
y = 3
Hence,
x + 3(3) = 7
x = 7 - 9
x = -2
learn more on equation here: brainly.com/question/12926248
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