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Ulleksa [173]
2 years ago
15

I’m terrible at math

Mathematics
2 answers:
frosja888 [35]2 years ago
5 0

Answer:

The Chromatophores are located in the dermis of the skin, above or below the scales. They impart true colour (rather than structural colour) and contain black, red, yellow, blue, white (and rarely green) pigment granules called chromatosomes. Only one colour is found in each chromatophore.

Step-by-step explanation:

Anni [7]2 years ago
4 0

Answer:

lol same but that's okay we can all for sure get better at it :)

Step-by-step explanation:

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I need to know this plz and thank u
mr_godi [17]
The third one :) I hope I did it right
3 0
3 years ago
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To illustrate the effects of driving under the influence of alcohol, a police officer brought a DUI simulator to a local high sc
nexus9112 [7]

Answer:

Check the explanation

Step-by-step explanation:

Here we have to first of all carry out dependent sample t test. consequently wore goggles first was selected at random for the reason that the reaction time in an emergency taken with goggles would be greater than the amount of reaction time in an emergency taken with not so weakened vision. So that we will get the positive differences d = impaired - normal

b)

To find 95% confidence interval first we need to find sample mean and sample sd for difference d = impaired minus normal.

We can find it using excel that is in the first attached image below,

Therefore sample mean ( \bar{X}_{d} ) = 0.98

Sample sd ( \bar{S}_{d} ) = 0.3788

To find 95% Confidence interval we can use TI-84 calculator,

Press STAT ----> Scroll to TESTS ---- > Scroll down to 8: T Interval and hit enter.

Kindly check the attached image below.

Therefore we are 95% confident that mean difference in braking time with impaired vision and normal vision is between ( 0.6888 , 1.2712)

Conclusion : As both values in the interval are greater than 0 , mean difference impaired minus normal is not equal to 0

There is significant evidence that  there is a difference in braking time with impaired vision and normal vision at 95% confidence level .

7 0
3 years ago
Someone please help.
olga55 [171]

Answer:


Step-by-step explanation:

It's solved by grafic method

6 0
3 years ago
Alejandro bought a new refrigerator for $856 with a 25% discount and
oksano4ka [1.4K]

Answer:

$695.94

Step-by-step explanation:

25% of 856 = 214

6.3% of 856 = 53.928

856 + 53.928 = 909.928

909.928 - 214 = 695.928 about 695.94

7 0
3 years ago
Read 2 more answers
A group of students is collecting books to add to their librarby. The table shows the number of books in the librarby after 1, 3
Grace [21]

Answer:

(7,48)

Step-by-step explanation

the books go up by ten  and the days go up by 2

6 0
3 years ago
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