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SVETLANKA909090 [29]
3 years ago
5

Is 1+4(3x-10) -12x equivalent to -9

Mathematics
1 answer:
kvasek [131]3 years ago
8 0

No. It’s not because you have to multiply 4 times 3x, as well as -10. Then use that for the like numbers.
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Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. To get the b
ale4655 [162]

Answer:

$122.1

Step-by-step explanation:

We are given the following data in the question

$124, ​$256 ​, $118, ​$441, ​$122, ​$335, ​$340, ​$191

Step 1

Find the mean

Mean = Sum of Terms / Number of Terms

Number of Terms = 8

Mean = ($124 + $256 ​+ $118 + ​$441 + $122 + ​$335 + ​$340 + ​$191 )/ 8

Mean = $1927/8

= $240.875

Approximately to 1 decimal place

$240.9

Step 2

Standard deviation formula

S = √( x - μ)²/ N - 1),

N = Number of terms

μ = Mean

S = √[($124 - $240.9)² + ($256 - $240.9)² + ($118 - $240.9)² + (​$441 - $240.9)² + ($122 - $240.9)² + ​($335 - $240.9)² + ​($340 - $240.9)²+ ​($191 -$240.9)²/ 8 - 1]

S = $122.0895

Approximately to 1 decimal place

S = $122.1

Therefore, the standard deviation for the given data is $122.1

7 0
4 years ago
Graph the point-slope equation: y+6=2(x+3)
Alex_Xolod [135]
Your slope is 2 and your Y-intercept is 0.
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4 0
4 years ago
The sum of the digits of a two-digit number is 12. The number with the digits reversed is 15 times the original tens' digit. Fin
nika2105 [10]

a-digit\ of\ tens\\b-digit\ of\ ones\\10a+b-the\ number\\10b+a-the\ number\ with\ reversed\ digits\\\\\left\{\begin{array}{ccc}a+b=12&\to b=12-a\\10b+a=15(10a+b)\end{array}\right\\\\\text{Substitute}\\\\10(12-a)+a=15(10a+12-a)\\10(12-a)+a=15(9a+12)\qquad\text{use distributive property}\\(10)(12)+(10)(-a)+a=(15)(9a)+(15)(12)\\120-10a+a=135a+180\\120-9a=135a+180\qquad\text{subtract 120 from both sides}\\-9a=135a+60\qquad\text{subtract 135a from both sides}\\-144a=60\qquad\text{divide both sides by (-144)}\\\\a=-\dfrac{60}{144}

a is negative and it's not a digit.

<h3>Conclusion: Such a number does not exist.</h3>
8 0
3 years ago
Someone please help me asap !!!!
Naily [24]
1 pint = 2 cups = 2(8 fluid ounces) = 16 fluid ounces= 16(2 tablespoons)= 32 table spoons.

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7 0
3 years ago
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TEA [102]

Answer:

I thought this was going to be easy been sitting here for 20min

7 0
3 years ago
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