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Tatiana [17]
3 years ago
13

(3+13)^2-6(9)^3+(67)^2-60

Mathematics
2 answers:
natali 33 [55]3 years ago
8 0

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

(3 + 13)^2 - 6(9)^3 + (67)^2 - 60

((3 + 13)^2) - (6(9^3))  + (67^2) - 60

   16^2       - (6(729)) + (4489) - 60

   256        -  4374    +  4489  - 60

   256         +           115           - 60

                 371                         - 60

                                311

<em>I hope this helps! Please mark brainliest!</em>

crimeas [40]3 years ago
3 0

Answer:

311

Step-by-step explanation:

3+13=16

16^2=16*16=256

9^3=9*9*9=81(9)=729

729*6=4374

67^2=67*67=4489

---------------------------

256-4374+4489-60=311

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Answer:

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<em>Hope this helps and have a great day!!!</em>

<em>Sofia</em>

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2 years ago
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3 years ago
Find the mean and the standard deviation for each set of values. Show your work. 15,17,19,20,14,23,12
vekshin1
1. Mean.

\overline{x}=\dfrac{15+17+19+20+14+23+12}{7}=\dfrac{120}{7}\approx\boxed{17.14}

2. <span>Standard deviation.

First we have to square each value and calculate the mean of that squares:

\overline{x^2}=\dfrac{15^2+17^2+19^2+20^2+14^2+23^2+12^2}{7}=\boxed{\dfrac{2144}{7}}

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and the standard deviation:

s=\sqrt{s^2}=\sqrt{12.41}\approx\boxed{3.52}
</span>
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3 years ago
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134$
5 0
3 years ago
Read 2 more answers
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