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3 years ago

Is this right? I don't get this whole page

Mathematics

2 answers:

Nonamiya [84]3 years ago

8 0

It looks right, but I could be wrong

boyakko [2]3 years ago

5 0

19.5+7.5= 27.0

27+ 24=51*

*I am pretty sure you are wrong.. not to be rude or anything.

I am pretty sure the answer is 51 because you have to line up the decimals when you add.

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The surface area of the rectangular prism can be found using the expression 6x exponent 3 + 4x exponent 2 + 12x. if the value of

kupik [55]

Answer:

234 cm²

Step-by-step explanation:

Given expression to represent the surface area of the rectangular prism is $6x^{3} +4x^{2} +12x$

The given value of x is 3.

Now, finding value of expression by sustituting value of "x" as given.

Surface area of the rectangular prism = $6x^{3} +4x^{2} +12x$

Surface area of the rectangular prism= $6\times 3^{3} +4\times 3^{2} +12\times 3$

∴ Surface area of the rectangular prism= $6\times 27+ 4\times 9+ 12\times 3$

Surface area of the rectangular prism= $162+36+36= 234\ cm^{2}$

∴ Surface area of the rectangular prism= 234 cm²

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3 years ago

To the nearest whole number, what is the mean number of letters per word in this sentence?

sertanlavr [38]

I counted 72 letters and 17 words so...
72/17 = 4.23 to the nearest whole number: 4 letters per word

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3 years ago

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Aleonysh [2.5K]

Step-by-step explanation:

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2 years ago

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Leya [2.2K]

Answer:

x=1

Step-by-step explanation:

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3 years ago

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Vera_Pavlovna [14]

Answer:try sin 14/x

Step-by-step explanation:

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3 years ago