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2 years ago

Help please !! I have school in an hour

Mathematics

1 answer:

Roman55 [17]2 years ago

6 0

Answer:

0.25

Step-by-step explanation:

the unit rate in this case is the cost per line, you decide 2.00 by 8

2.00/8=0.25

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Does anyone know how to do this? please help me

Elis [28]

On the x column, you would write 1, 2, 3, 4, and so on. Then, in the y box, you plug in that number into the equation. Write your answer in the y column.

For example, if x = 1, then 1^2 + 2 - 8 = - 5.
If x = 1, y= -5

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3 years ago

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Identifiy the mode of the followinng numbers:2,5,6,6,11,19,20

vlada-n [284]

remember that a mode is a number repeated in the data set ( or the number list.

Mode: 6

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2 years ago

Help me please thank you so much if you did

Gala2k [10]

Answer:

I just answed this question today!Your asnwer is 144.

Step-by-step explanation:

1:5:3

48 total.

Divide 48 and get 16

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2 years ago

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The estimated daily living costs for an executive traveling to various major cities follow. The estimates include a single room

Alexandra [31]

Answer:

$\bar x = 260.1615$

$\sigma = 70.69$

The confidence interval of standard deviation is: $53.76$ to $103.25$

Step-by-step explanation:

Given

$n =20$

See attachment for the formatted data

Solving (a): The mean

This is calculated as:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{242.87 +212.00 +260.93 +284.08 +194.19 +139.16 +260.76 +436.72 +355.36 +.....+250.61}{20}$

$\bar x = \frac{5203.23}{20}$

$\bar x = 260.1615$

$\bar x = 260.16$

Solving (b): The standard deviation

This is calculated as:

$\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n-1}}$

$\sigma = \sqrt{\frac{(242.87 - 260.1615)^2 +(212.00- 260.1615)^2+(260.93- 260.1615)^2+(284.08- 260.1615)^2+.....+(250.61- 260.1615)^2}{20 - 1}}$ $\sigma = \sqrt{\frac{94938.80}{19}}$