Can someone help please?

Answers

Answer 1

Answer:

25 is the correct answer

Related Questions

When a virus is placed on a tobacco leaf, small lesions appear on the leaf. To compare the mean number of lesions produced by two different strains of 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 the leaf is decided by a coin flip. The lesions that appear on each half are then counted. The data are given below:
Leaf Strian 1 Strain 2
1 31 18
2 20 17
3 18 14
4 17 11
5 9 10
6 8 7
7 10 5
8 7 6
What is the number of degrees of freedom associated with the apropriate t-test for testing to see if there is a difference between the mean number of lesions per leaf produced by the two strains?
a. 7.
b. 8.
c. 11.
d. 14.
e, 16.

Answers

Answer: a. 7

Step-by-step explanation: Degrees of Freedom is the number of values "allowed" to vary. For example:

In the experiment above, the sample has 8 tobacco leaves. Two strains will be applied to each leaf. The decision of which strain goes to the right or left is random. Each strain have 7 possible leaves it can be applied, because, for the last, the eight leaf, there is no choice.

Therefore, the degrees of freedom for this experiment is 7.

It can also be calculated as

df = n - 1

df = 8 - 1

df = 7

Kevin can travel 22 1/2 miles in 1/3 hours. What is his average speed in miles per hour

Answers

Answer:

67 1/2

Step-by-step explanation:

22 1/2*3

Factor the polynomial as much as possible 25x^4-16y^14

Answers

Answer:

(4y7+5x2)(−4y7+5x2)

Step-by-step explanation:

Enter a number in the space provided to make the equation true.

Answers

Answer:

4.5

Step-by-step explanation:

4.5
5 - 9.5 = 4.5 so 5 + 4.5 = 9.5

Pls help!!! Will mark Brainiest!

Factor each expression using the GCF. Check your work using the Distributive Property.
9. 3x + 12
10. 6x - 30
11. 20x - 16
12.-50x + 80
13. 77 + 22x
14. 21x - 14

Answers

Answer:

9.3(x+4)

10.6(x-5)

11.4(5x-4)

12.-10(5x-8)

13.11(7+2x)

14.7(3x-2)

Step-by-step explanation:

Find the measure of angle 4

A. 51
B. 39
C. 90

Answers

Answer:

angle 4 is equalivent to B.) 39°

it takes 15 cups of water to fill 1/3 bucket. How much water is needed to fill 1 bucket?

Answers

Answer: 15/(1/3) = X/ 1
15 ÷1\3 = 15 x 3 =45 cups

Hope this helps (:

Answer:

45 cups

Step-by-step explanation:

Solve the equation 2(x-3) = 14

Answers

The answer is X=10.

URGENT
I put an answer already but I am not sure if it is right. I need a Confirmation.

Answers

Answer:

I think you are correct.

Step-by-step explanation:

Sorry if I am wrong

Please help I don't get this question

Answers

The first one: 10x+30

Answer:

10x+30

Step-by-step explanation:

Distributive property is distributing what is in the parentheses.

To do that on this problem you have multiply each of these numbers by 10!

10 times x is 10x

10 times 3 is 30

Put them back together and you get 10x+30!

I hope this helps, and have a great day! :)

P.S. If you need a better explanation I can help. I just didn't want to make this to long. :D

What type of jobs offer commissions?

Answers

Answer:

Sales Engineers. ...

Wholesale and Manufacturing Sales Representatives. ...

Securities, Commodities, and Financial Services Sales Agents. ...

Advertising Sales Agent. ...

Insurance Sales Agent. ...

Real Estate Brokers and Sales Agents. ...

Travel Agents.

Step-by-step explanation:

What type of jobs offer commissions?

-Sales Engineers

-Wholesale and Manufacturing Sales Representatives

-Securities, Commodities, and Financial Services Sales Agents

-Advertising Sales Agent

-Insurance Sales Agent

-Real Estate Brokers and Sales Agents

-Travel Agents

Kevin earns $14.00 for writing 5 story problems. How much would Kevin earn if he wrote 100 story problems?

Answers

Answer:

280

Step-by-step explanation:

5 story problems ->$14

100 story problems -> ?

100÷5=20

20x14=280

Answer:

$280

Step-by-step explanation:

$14.00 divided by 5 would be 2.8

So he would earn $2.8 per problem

Well 2.8 x 100 is $280

So the answer would be $280

Hope this helps

Simplify by dividing (-3/8) -5/9

Answers

Answer:

[tex]\frac{-27}{40}[/tex]

Step-by-step explanation:

[tex](\frac{-3}{8})[/tex]÷[tex]\frac{5}{9}[/tex]

[tex]\frac{-3}{8}[/tex]×[tex]\frac{9}{5}[/tex]

[tex]\frac{-27}{40}[/tex]

12 children in art class have to share 8 packages of clay so that everyone gets the same amount. How much clay can each child have?

Answers

Answer:8 y sobran 4

Step-by-step explanation:

8entre 4

Answer:

1.5

Step-by-step explanation:

69 = 50 + s; 17, 18, 19

Answers

The answer is 19 pls mark brainliest if correct

Answer:

Step-by-step explanation:

PLEASE HELP! 46 POINTS (hopefully you can answer it now)

Answers

Answer:

I think it might be the third one

Step-by-step explanation:

not totally sure tho

What is the value of x?
A. 8.86 °
B. 17 °
C. 21.71 °
D. 33 °

Answers

Answer:

B. 17°

Step-by-step explanation:

7x + 28° + 33° = 180°{ being linear pair }

7x = 180° - 33° - 28°

7x = 119°

x = 17°

Hope it will help :)✔

Brainliest to best answer :D
The difference of two numbers is 63. The sum of two numbers is 111. What are the two numbers?

Answers

Answer:

Step-by-step explanation:

Let b>a

b-a=63

b=63+a

a+b=111, substituting 63+a from above in this equation gives you

a+63+a=111

2a+63=111

2a=48

a=24, since b=63+a

b=63+24

b=87 so the two numbers are

24 and 87

So far, Monica has read ã of a book. She
has read the same number of pages each
day for 5 days. What fraction of the book
does Monica read each day?

Answers

How many pages are their?

Which one is the right answer

Answers

Answer:

The second one. y = .2x + 1

Step-by-step explanation:

1 = .2*0 + 1

1.4 = .2*2 + 1

And so on

Hope this helps :)

the second one is correct

What is the distance between the points (2, 1) and (14, 6) on a coordinate
plane?

Answers

Answer:

the answer is 13 units

Step-by-step explanation:

What is the measure for angle z?

Answers

Answer:

there's no angle z theres only x but the answer for x is 133

Step-by-step explanation:

two families that live 270 mi apart plan to meet at a park located between their two homes.both leave at 9:00 am but one family averages 12 mph faster than the other family.
if the families meet at the designated spot 2 and half hours later, determine the average rate of speed for each family

Answers

Answer:

Family 1 average rate of speed was 66 miles per hour, while Family 2 average rate of speed was 54 miles per hour.

Step-by-step explanation:

Since two families that live 270 mi apart plan to meet at a park located between their two homes, and both leave at 9:00 am but one family averages 12 mph faster than the other family, if the families meet at the designated spot 2 and half hours later, to determine the average rate of speed for each family, the following calculation must be performed:

Family 1: ((270/2) + (12 x 2.5)) / 2.5

Family 1: (135 + 30) / 2.5

Family 1: 165 / 2.5

Family 1: 66 miles per hour

Family 2: (270/2) / 2.5

Family 2: 135 / 2.5

Family 2: 54 miles per hour

In this exercise we have to use the knowledge of speed to calculate the speed each family achieves, thus we find that:

Family 1 the average rate of speed for each family is 66 miles per hour.Family 2 the average rate of speed for each family is 54 miles per hour

So looking at family 1 we found that:

[tex]F_1:\frac{ ((\frac{270}{2.5})+(12*2.5))}{2.5} \\F_1: \frac{(135 + 30)}{2.5}\\F_1: \frac{165}{2.5}\\F_1: 66 \ miles \ per \ hour[/tex]

So looking at family 2 we found that:

[tex]F_2: \frac{(\frac{270}{2})}{2.5}\\F_2: \frac{135}{2.5}\\F_2: 54 \ miles \ per \ hour[/tex]

See more about speed at brainly.com/question/7359669

Solve p
0.6p+4.5=22.5

I need an answer before 11:59 pm

Answers

P = 30 is the answer

21< -4+5x Hurry I need it

Answers

x=5
uhhhhh because yea

Please help WORTH 20 POINTS the highlighted one is wrong

Answers

Answer:

the answer is b

Step-by-step explanation:

Does your question give a description on how the shoe sell is but I think it might be b but I’m not sure

please help me please i really need help please

Answers

Answer:

this is very hard, I do not understand such math, I don't know

Answer:

Step-by-step explanation:

We are adding together, so b and d can't be the answer. Fran has 2 fewer hats than elena , so Fran cannot be h or else she would have more hats.

So, a would have to be the answer.

If 3/4 pounds of Fudge coast $6. 75, how much does 1 pound cost. Write as an equation.

Answers

Divide 6.75 by 4 then you know the unit rate then multiply that by 4

Which amount is greater, 5 feet or 2 yards?

Answers

Answer:

2 yards is greater then 5 feet

Step-by-step explanation:

A yard is 3 feet, 3+3=6 I hope this helps!

17
Convert into a mixed number.
9

Answers

Answer: [tex]1\frac{8}{9}[/tex]

Step-by-step explanation:

i'm assuming the fraction is [tex]\frac{17}{9}[/tex] correct? First you would have to find out how many times 9 can be multiplied to get as close to 17. Since it can only go one time, subtract 9 from 17, then add the one next to it which would get you the mixed number of [tex]1\frac{8}{9}[/tex]

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