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marissa [1.9K]
3 years ago
14

{144} " alt="x {2} = \frac{25}{144} " align="absmiddle" class="latex-formula">
I don't understand at all​
Mathematics
1 answer:
Amanda [17]3 years ago
4 0

Step-by-step explanation:

Hey, there!!

Let me explain you very simply, ok.

Here, according to the question,

{x}^{2} =  \frac{25}{144}

X is square so, which finding the value of x you must take it to the right side (in root form ). so,

x =  \sqrt{ \frac{25}{144} }

Now, as we know that,

sq.root of 25 = 5

sq.root of 144 = 12

Now, you write it as,

x =  \sqrt{ \frac{ {5}^{2} }{ {12}^{2} } }

or \: x =  \sqrt{( { \frac{5}{12} )}^{2} }

Now, square root and (5/12) square ( square root , square gets cancelled).

You will get as,

x =  \frac{5}{12}

And its your simplified answer.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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Answer:

b) 7×8

c) 4×14

d) 2×28

Step-by-step explanation:

A factor pair of a number is a pair of numbers that, when multiplied will result in the given number.

The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, and 56.

The factor pairs are:

  • 1 X 56
  • 2 X 28
  • 4 X 14
  • 7 X 8

Out of the options, only Option A is not a factor pair.

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Answer:

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  • See below about the process

Step-by-step explanation:

The simplified expression is ...

  3x(x -12x) +3x² -2(x -2)²

  = 3x(-11x) +3x² -2(x² -4x +4) . . . . . simplify contents of parentheses

  = -33x² +3x² -2x² +8x -8 . . . . . . . .eliminate parentheses

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Find the slope of a<br> line with ordered pairs<br> (1,5) and (5,8)
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Step-by-step explanation:

(1,5) (5,8)

x,y. x,y

Formula: <u>y2-y1</u>

x2-x1

so...

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4

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This question is incomplete, in that the Excel File: data07-11.xlsx a. was not provided, but I was able to get the information on the Excel File: data07-11.xlsx a. from google as below:

57 61 86 74 72 73

20 57 80 79 83 74

The image of the Excel File: data07-11.xlsx a. is also attached below.

Answer:

a) Point estimate of sample mean  = 68

b) Point estimate of standard deviation (4 decimals) = 17.8122

Step-by-step explanation:

a) Point estimate of sample mean, \bar{x}  =  ∑Xi / n = (57 + 61 + 85 + 74 + 73 + 72 + 20 + 58 + 81 + 78 + 84 + 73)/12 = 68

b) Point estimate of standard deviation = sqrt ∑ Xi² - n\bar{x}² / n-1)

= sqrt(((57 - 68)^2 + (61 - 68)^2 + (85 - 68)^2 + (74 - 68)^2 + (73 - 68)^2 + (72 - 68)^2 + (20 - 68)^2 + (58 - 68)^2 + (81 - 68)^2 + (78 - 68)^2 + (84 - 68)^2 + (73 - 68)^2)/11) = 17.8122

4 0
3 years ago
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