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3 years ago

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The table represents a function.

1 answer:

Maurinko [17]3 years ago

8 0

For this case the first thing that we must observe is the value of f (x) of the function in the table, when the value of x is x = -1

We then have that for x = -1, the value of the function is equal to 0.

Therefore, the following relationship is fulfilled:

$f (-1) = 0$

Answer:

the value of f (-1) is:

$f (-1) = 0$

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You work for a soft-drink company in the quality control division. You are interested in the standard deviation of one of your p

frutty [35]

Answer:

Step-by-step explanation:

weight (x) $( x - \overline x)^2$

12.05 0.00123

12 0.00019

11.96 0.00292

12.14 0.0159

12.12 0.00112

11.97 0.0019

11.96 0.0029

12.11 0.0092

11.94 0.0055

11.82 0.038

12 0.00019

12.18 0.028

11.91 0.0108

12.06 0.0021

11.99 0.0029

$\sum x = 180.21$ $\sum (x - \overline x)^2 = 0.12285$

Sample size = 15

$\overline x = \dfrac{180.21}{15} = 12.014$

Sample standard deviation

$x = \sqrt{\dfrac{0.12285}{15-1}}$

$x = 0.0937$

$\text{degree of freedom = n - 1}$

$degree of freedom = 15- 1=14$

$\text{confidence interval} \alpha = 1- 0.98 = 0.02 \\ \\ \alpha/2 = 0.02/2 = 0.01$

$From \ X^2 \ table}$ $\text{, the critical value} X^2 \text{=0.99 for degree of freedom =14 is given by : 4.660}$

$\text{, the critical value} X^2 \text{=0.01 for degree of freedom =14 is given by : 29.141}$

$\text{Thus, the lower limit = 4.660, the upper limit = 29.141}$

$\text{the confidence interval of the standard deviation} \ \sigma \ is:$

$\sqrt{\dfrac{(n -1)s^2}{X^2_{\dfrac{\sigma}{2}}} } \le \sigma \le \sqrt{\dfrac{(n -1)s^2}{X^2_{1-\dfrac{\sigma}{2}}} }$

replacing our values:

$\sqrt{\dfrac{(15 -1)0.0937^2}{29.141} } < \sigma$

$= 0.06495 < \sigma < 0.1624$

$\mathbf{Thus; \ \sigma (0.06495 , 0.1624)}$

3 0

3 years ago

What is answer to 12 is less than or equal to minus 8 n?

Stells [14]

Answer:

it depends on what n is

4 0

3 years ago

PLEAAseeeeeeeeeeeeeeeeeeeeeee

aleksandr82 [10.1K]

Answer:

$1.25\cdot10^{5}$ $or$ $125000$

Step-by-step explanation:

$--------------------------------------------$

$1)$ $64\cdot10^{6}$ = $64000000$

$2 )$ $32\cdot10^{6}$ = $32000000$

$3)$ $16\cdot10^{6}$ = $16000000$

$4)$ $8\cdot10^{6}$ = $8000000$

$5)$ $4\cdot10^{6}$ = $4000000$

$6)$ $2\cdot10^{6}$ = $2000000$

$7)$ $1\cdot10^{6}$ = $1000000$

$8)$ $5\cdot10^{5}$ = $500000$

$9)$ $2.5\cdot10^{5}$ = $250000$

$10)$ $1.25\cdot10^{5}$ = $125000$

$--------------------------------------------$

<em>The way I solved this question was by dividing each scientific form by two.</em>

$--------------------------------------------$

<em>Hope this helps! <3</em>

$--------------------------------------------$

6 0

3 years ago

A business owner pays $1,200 per month in rent and a total of $120 per hour in employee salary for each hour the store is open.

Angelina_Jolie [31]

Answer: I'm pretty sure it's 200x - 120x = 1,200

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

4 x equals negative 2x + negative 6

erastovalidia [21]

So x equals two if it is an exponent.9

7 0

3 years ago

Read 2 more answers