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larisa [96]
3 years ago
7

Please help please now please

Mathematics
1 answer:
LenaWriter [7]3 years ago
8 0

Answer: 1,070 cm²

Step-by-step explanation:

25 multiplied by 15 is 375.

15 multiplied by 4 is 60.

25 multiplied by 4 is 100.

Now, we multiply these answers by 2.

375 multiplied by 2 is 750.

100 multiplied by 2 is 200.

60 multiplied by 2 is 120.

Add these all up, and you get your surface area, 1,070.

(Tldr; SA = 2lw + 2lh + 2hw)

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You are given the length of a rectangular prism of 3x^2, width of 2x and height of x^2 + 3x +5. You are required to find the volume of a rectangular prism. Using the equation V = l x w x h, we multiply the three dimensions.

V = l x w x h

V = (3x^2)(2x)( x^2 + 3x +5)

V = 2x (3x^4 + 9x^3 + 15x^2)

V = 6x^5 + 18x^4 + 30x^3

The volume of the rectangular prism is 6x^5 + 18x^4 + 30x^3.

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2 years ago
Which set of ordered pairs do NOT represent a function?
Rainbow [258]

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Every input can have only one output. But an output can have multiple inputs. Basically an x coordinate can have the same y coordinate as another ordered pair but not the same x coordinate. This is why d) does not represent a function.

Step-by-step explanation:

(4,-2)

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3 years ago
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Step-by-step explanation:

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3 years ago
Answer and round to the nearest tenth .<br> <img src="https://tex.z-dn.net/?f=2.1%5Csqrt%7B1.488%7D" id="TexFormula1" title="2.1
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It is a good idea to get familiar with the operation of your calculator. If you're going to use on-line resources to work problems like this, you can make use of any of several good on-line calculators. Google and Bing search boxes will do calculations for you while observing all the rules of the Order of Operations.

The result of this computation is a number that begins 2.56.... Since the hundredths digit is more than 4, the tenths digit is rounded to the next higher value, from 5 to 6.

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Ksenya-84 [330]

Step-by-step explanation:

On the first question, you would want to put the equation together. To find x you will put 2x+6=40. Subtract 6 on both sides and you will find your x value.

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