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Dmitry_Shevchenko [17]
2 years ago
8

PERIMETER PLEASE HELP

Mathematics
1 answer:
Tamiku [17]2 years ago
8 0

Answer:

164 round = 160

your answer now can you please help me

Step-by-step explanation:

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Find the value of the expression x3−y3+x2+y2+3 by substituting x=−2 and y=1.
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\\ \sf\dashrightarrow x^3-y^3+x^2+y^2+3

\\ \sf\dashrightarrow (-2)^3-(1)^3+(-2)^2+(1)^2+3

\\ \sf\dashrightarrow -8-1+4+1+3

\\ \sf\dashrightarrow -9+8

\\ \sf\dashrightarrow -1

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A poll asks shoppers at the mall how many cups of water they typically drink in a day. The results of the poll are listed below.
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3 years ago
The ages of undergraduate students in a state
Elan Coil [88]

The percent of students that are aged 19 years or more is determined as 84%.

<h3>One standard deviation below the mean</h3>

In a normal distribution curve 1 standard deviation below the mean is defined as follows;

  • 1 std below mean : M - d = 16%

M - d = 20.6 yrs - 1.3 yrs = 19.3 years ≈ 19 years

19 years or more will occur at (M - d) + (M) + (M + 2d) = 100% - (M - d)

                                                                                       = 100% - 16%

                                                                                       = 84%

Thus, the percent of students that are aged 19 years or more is determined as 84%.

Learn more about normal distribution here: brainly.com/question/4079902

#SPJ1

                               

7 0
2 years ago
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