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3 years ago

Evaluate 2x+3 given that x=6

Mathematics

1 answer:

sesenic [268]3 years ago

7 0

Answer:

Step-by-step explanation:

2x + 3 given x=6

2(6) + 3

12 + 3

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1.9/10 times 3/6 then simplified

givi [52]

1) 0.095
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4)0.21875
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6)0.66
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4 years ago

Question 2

DENIUS [597]

9514 1404 393

Answer:

1.05

Step-by-step explanation:

Following instructions, we have ...

Z = (X -μ)/σ

Z = (180 -159)/20 = 21/20

Z = 1.05

The Z-score associated with the value 3 minutes is 1.05.

_____

<em>Additional comment</em>

About 14.7% of customers will be getting free coffee.

8 0

3 years ago

1. The linear equation graph below shows a

Lyrx [107]

The answer to your question is A

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3 years ago

Find the standard deviation of 21, 31, 26, 24, 28, 26

Vesnalui [34]

Given the dataset

$x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}$

We start by computing the average:

$\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26$

We compute the difference bewteen each element and the average:

$x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}$

We square those differences:

$(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}$

And take the average of those squared differences: we sum them

$\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69$

And we divide by the number of elements:

$\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5$

Finally, we take the square root of this quantity and we have the standard deviation:

$\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39$

8 0

3 years ago

−6≥10−8x please help me solve this!1

Liono4ka [1.6K]

Inequality form: x ≥ 2

5 0

4 years ago

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