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Mariana [72]
4 years ago
10

When a virus is placed on a tobacco leaf, small lesions appear on the leaf. To compare the number of lesions produced by two dif

ferent strains of a virus, one strain is applied to half of each of 8 tobacco leaves, and the other strain is applied to the other half of each leaf. The strain that goes on the right half of each leaf is decided with a coin flip. The data are given below. What is the number of degrees of freedom associated with the appropriate t test for testing to see if there is a difference between the mean number of lesions per leaf produced by the two strains? 11 7 11.53 8 12.01
Mathematics
1 answer:
Anastasy [175]4 years ago
6 0

Answer:

12345

Step-by-step explanation:

eat

play

do your own WORK !!!!!!!!!!!!!!

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The distance between town X and town Y is 124 kilometres and a car uses 25 litres of petrol to make the journey. after the engin
Jlenok [28]

Answer:

49 litres of petrol are needed to travel from town X to town Y and back.

Step-by-step explanation:

Well, first off, the variable X and Y, as well as the distance given (124 km) aren't important pieces of information in this equation. They're only there to throw you off and confuse you.

25L of <em>p</em> (petrol) to make the entire journey. After the engine has been tuned, it requires 2% less <em>p</em> than before it was tuned.

2%/100 = 0.02

0.02 * 25L = 0.5L

25L - 0.5L = 24.5L

Now, don't forget, at the end of the word problem we're asked how many litres of <em>p</em> would be required to travel from <em>x</em> to <em>y</em> <em><u>AND BACK</u></em>. So it's not only 24.5L, it's double that (24.5 * 2 = 49L)

Good luck!!

6 0
3 years ago
Read 2 more answers
Help plzzzzzzzzzzzz ​
marissa [1.9K]
33+28+7x= 180
61+7x =180
7x= 119
X= 17
Hope this helped :)
8 0
3 years ago
What is the missing length?
Lostsunrise [7]

Answer:

DONT CLICK THE LINK ITS A VIRUS

Step-by-step explanation:

7 0
3 years ago
Find the Vertex and the Axis of symmetry
marissa [1.9K]
                    1). X= 1 

                    2).  x = 4 

                    3). x = 2 

                    4). x = 3 

Try going with these ↑
3 0
4 years ago
Gillian can spend up to $300 buying both cotton shirts and wool shirts for her club. The cotton shirts cost $15 each and the woo
Vaselesa [24]

Answer: Option 'A' is correct

Step-by-step explanation:

Since we have given that

Total money Gillian spend on both cotton shirts and wool shirts = $300

Cost of per cotton shirt = $15

Cost of per wool shirt = $ 20

According to question,

The number of wool shirts Gillian will buy will be at least 3, but less than half the number of cotton shirts she buys.

So, by option when we use the data of Option 'A'

Number of cotton shirts =13

Cost incurred on cotton shirt is given by

13\times 15=195

Number of wool shirts = 4

Cost incurred on wool shirt is given by

4\times 20=80

Total cost incurred on both the shirts is given by

195+80=\$275

If we use option 'B' we spend only $230

If we use option 'C' , it does not satisfy the question as it is mentioned in the question that number of wool shirt must be less than half of number of cotton shirt

If we use option 'D' , we spend $325 which is much higher than $300

Hence , option "A" is correct.

3 0
3 years ago
Read 2 more answers
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