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3 years ago

The area of a face of a cube is 361 cm.

Mathematics

1 answer:

liraira [26]3 years ago

3 0

Step-by-step explanation:

Get the square root of 316 which is 17.8

To get surface area you do cross section area x6

17.8×17.8×6=1896

To get volume you do length ×height ×width

17.8×17.8×17.8=5639.752cm³ or 5640cm³ if rounded off

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12, 17, 11, 13, 17, 15<br> What is the mean of the data?

garri49 [273]

Step-by-step explanation:

The mean is the average. Add up all the points, then divide by the number of points.

(12 + 17 + 11 + 13 + 17 + 15) / 6 = 14⅙

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3 years ago

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How do I solve this

Alina [70]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\displaystyle\sum \limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio} \end{cases} \\\\[-0.35em] ~\dotfill$

$\bf S_{20}=\displaystyle\sum \limits_{n=1}^{\stackrel{\stackrel{n}{\downarrow }}{20}}~\stackrel{\stackrel{a_1}{\downarrow }}{3}(\stackrel{\stackrel{r}{\downarrow }}{1.5})^{n-1}\implies S_{20}=3\left(\cfrac{1-1.5^{20}}{1-1.5} \right)\implies S_{20}=3\left(\cfrac{1-\stackrel{\approx}{3325.3}}{-0.5} \right) \\\\\\ S_{20}=3\left(\cfrac{-3324.3}{-0.5} \right)\implies S_{20}=3(6648.6)\implies S_{20}=19945.8$

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3 years ago

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A house cat weighs 9.22 pounds Hercules the liger is the worlds largest cat and weighs 100 times the weight of the house cat how

Tanya [424]

Answer:

922 pounds

Step-by-step explanation:

9.22 x 100 = 922

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3 years ago

If you had to pick a number 1-4 what would be the luckiest?

earnstyle [38]

I always feel drawn to the number 2 for some reason because it is in the middle between 2 and four and usually when given an option to pick a number I never pick a number that they say. Personally I just feel drawn to pick the number 2 its a nice even number and perhaps could be lucky :)

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3 years ago

The rational number lies between −67/7 and−78/8

zheka24 [161]

9514 1404 393

Answer:

-135/14

Step-by-step explanation:

There are an infinite number of rational numbers between any pair of numbers you name. These two number have the decimal values ...

-67/7 = -9 4/7 = -9.571428... (repeating)

-78/8 = -9 3/4 = -9.75

So, numbers like -9.6 = -48/5, or -9.7 = -97/10 are rational numbers that lie in the range you specified.

If you like, you can convert these numbers to ones with a common denominator (56).

-67/7 = -536/56

-78/8 = -546/56

These limits suggest several possible rational numbers with 56 as a denominator: -540/56 = -135/14, for example.

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2 years ago