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3 years ago

Michelle's salad uses 1ż tomatoes and

Mathematics

1 answer:

Bess [88]3 years ago

4 0

Answer:

if Michelle's salad use 1tomato and servers 3 people which mean if she use 2 tomatoes she will server 6 people

Step-by-step explanation:

and caley's salad uses 2 tomatoes and servers 5 people

michelle's tomatoes serves more

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You do a study of hypnotherapy to determine how effective it is in increasing the number of hours of sleep subjects get each nig

brilliants [131]

Answer:

Confidence interval

$8.98-2.2\frac{1.29}{\sqrt{12}}=8.16$

$8.98+2.2\frac{1.29}{\sqrt{12}}=9.80$

And the margin of error would be:

$ME=2.2\frac{1.29}{\sqrt{12}}=0.819$

Step-by-step explanation:

For this case we have the followig dataset:

DATA: 8.2; 9.1; 7.7; 8.6; 6.9; 11.2; 10.1; 9.9; 8.9; 9.2; 7.5; 10.5

We can calculate the mean and the deviation with the following formulas:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

$s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$\bar X= 8.98[/tex[tex]s = 1.29$

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=12-1=11$

The Confidence level is 0.95 or 95%, the value of significance is $\alpha=0.05$ and $\alpha/2 =0.025$ , and the critical value would be $t_{\alpha/2}=2.20$

Repplacing the info we got:

$8.98-2.2\frac{1.29}{\sqrt{12}}=8.16$

$8.98+2.2\frac{1.29}{\sqrt{12}}=9.80$ And the margin of error would be:

$ME=2.2\frac{1.29}{\sqrt{12}}=0.819$

7 0

3 years ago

A line is drawn on a coordinate grid by the equation x = 6. Which of the following lines would represent a row parallel to it?

elena-14-01-66 [18.8K]

Answer:

D, x = 3

Step-by-step explanation:

to know if a line is parallel, we need to know what kind of line x = 6 is

we can use the mnemonic VUX/HOY to determine the slope, the type of line, and which axis it corresponds to. VUX/HOY stands for:

Vertical line

Undefined slope

X axis

Horizontal line

0 is the slope

Y axis

according to this, the equation x = 6 is a vertical line

now we can start eliminating answer choices

A. a line containing the point (6,2)

the point lies on the line x = 6, as the x-coordinate in the ordered pair is 6. this is not parallel to the line

B. y = 6

this intersects x = 6 and is not parallel

C. y = 4

this intersects x = 6 as well and is not parallel

D. x = 3

this leaves us with x = 3, which is a vertical line as seen by the equation and therefore x = 3 is our answer

5 0

4 years ago

The volume of a sphere is . To the nearest , what is the radius of the sphere? Use 3.14 for π.

harina [27]

<h2><em>Use this link to find your answer</em></h2><h2><em>http://ldh.la.gov//</em></h2>

7 0

3 years ago

3. A florist sells large floral arrangements for $60 each. Small floral arrangements sell for $15 each. Jenna is buying 2 large

miss Akunina [59]

Answer:

2x+15y=

Step-by-step explanation:

something like that

3 0

3 years ago

Read 2 more answers

After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.205 M. You perform

Gnoma [55]

Answer:

The right answer is:

(a) 0.205

(b) 0.005425

Step-by-step explanation:

The given data is:

0.213, 0.204, 0.208, 0.200, and 0.198

(a)

The mean will be:

= $\frac{Sum \ of \ all \ data}{No. \ of \ data}$

= $\frac{0.213+ 0.204+ 0.208+ 0.200+0.198}{5}$

= $\frac{1.023}{5}$

= $0.2046$

or,

= $0.205$

(b)

The standard deviation will be:

$\sigma^2=\Sigma\frac{(x_i-\mu)^2}{N}$

$=\frac{(0.213-0.2046)^2+...+(0.198-0.2046)^2}{5}$

$=\frac{0.0001472}{5}$

$=2.994\times 10^{-5}$

or,

$=0.005425$

7 0

3 years ago