please answer quick!!

Answer:Response variable (s)-concentration, (s): Treatment- 2,6,12 hours,Replication(s)-10/20/30 hours

Experimental Unit- dark/light

Factors-color/hours

Step-by-step explanation:

Factors refer to explanatory variables tat are being studied in an experiment. They are manipulated in order to obtain a response (dependent) variable.

Treatments refer to a combination of factor levels in the experiment. Each factor has two or more levels

The experimental unit refers to the physical entities assigned at random to treatments during the experiment.

Replication refers to the number of times the same experiment is carried out. It enhances the reliability of the result of an experiment.

The concentration is tested by titration with potassium permanganate, and each sample is tested twice Replication-10/20/30 hours.

We have to determine

The concentration is tested by titration with potassium permanganate, and each sample is tested twice.

Hydrogen peroxide is a chemical compound that is gaseous in nature. Its viscosity is greater than that of water.

Since it is unstable it slowly decomposes in the presence of light to form water and oxygen.

The control experiment is necessary for the determination of reliability and statistical significance of results obtained.

Replication helps to ensure accuracy and randomization aids us in making quality generalizations from experimental data.

Testing the concentration of hydrogen peroxide decanted to dark bottles is the control experiment.

Testing the concentration of the species after exposure to air for 10,20 and 30 hours is randomization.

Replication refers to the number of times the same experiment is carried out. It enhances the reliability of the result of an experiment.

Testing each sample twice is replication.

To know more about Hydrogen peroxide click the link given below.

https://brainly.com/question/18709693

Answer:

.313265*100 is 31.3265

rounded is 31.3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

11/5 or 1 and 2/10

Step-by-step explanation:

9514 1404 393

Answer:

  1 1/5 inches

Step-by-step explanation:

It should come as no surprise that the sum of 1 and 1/5 can be written as the mixed number 1 1/5.

Recognizing that 1 = 5/5, the sum of 1 and 1/5 can also be written as the improper fraction ...

  1 1/5 = 5/5 +1/5 = (5+1)/5 = 6/5

The total snowfall was 1 1/5 or 6/5 inches.

Answer:

1. d<=200

2. f>=35

Step-by-step explanation:

Answer:

d ≤ 200

f  ≥ 35

Step-by-step explanation:

"no more than 200 " means it can be equal to or less than 200. Therefore, we would use the "less than or equal to" sign, or "≤". We would put 200 at the end as it is no more than 200 feet, so 200 is the max.

"at least 35" means it is equal to or more than 35. Therefore, we would use the "greater than or equal to sign" or "≥". Since it is talking about 35 miles, we put the 35 at the end with the sign pointing away from it since 35 is the lesser number.

Remember, the "mouth" or opening of the equality sign always points to the greater or bigger number. You can think of it as an alligator wanting to eat the bigger number.

Hope this helps! :)

Answer:

12 1/3

Step-by-step explanation:

Answer:

12 1/3

Step-by-step explanation:

1. Divide the numerator by the denominator.

Divide 37 by 3, which equals 12 with a remainder of 1.

37 ÷ 3 = 12 r1

2. Find the whole number.

The whole number is the number of times the denominator divides into the numerator.

3 (the denominator) divides into 37 (the numerator) 12 times, so 12 is the whole number.

Make the remainder the new numerator.

Because the remainder (the leftover value) of dividing 37 by 3 is 12, 1 is the new numerator. The denominator is still 3. So, the mixed fraction is:

12 1/3

Hope it helps...

Answer:

[tex]-(C^5)^4\\= -(C^2^0)\\= -C^2^0[/tex]

Answer:

Egg salad sandwich is proportional to its length

Step-by-step explanation:

Weight of Sandwiches by Length of Roll

                                        6-inch Roll      12-Inch Roll

Cheese sandwich               [tex]\frac{1}{4}[/tex]                      [tex]\frac{3}{4}[/tex]

Chicken salad sandwich     [tex]\frac{3}{4}[/tex]                     [tex]1\frac{3}{4}[/tex]

Egg salad sandwich            [tex]\frac{2}{3}[/tex]                   [tex]1\frac{1}{3}[/tex]

For cheese sandwich proportion

[tex]\frac{6}{\frac{1}{4}}=\frac{12}{\frac{3}{4}}\\24 \neq 16[/tex]

So, Cheese sandwich weight is not proportional to its length

For Chicken salad sandwich proportion

[tex]\frac{6}{\frac{3}{4}}=\frac{12}{\frac{7}{4}}\\8 \neq \frac{48}{7}[/tex]

So, chicken salad sandwich is not proportional to its length

For Egg salad sandwich  proportion

[tex]\frac{6}{\frac{2}{3}}=\frac{12}{\frac{4}{3}}\\9=9[/tex]

So, egg salad sandwich is proportional to its length

Answer:

Yes

Step-by-step explanation:

When u divide 1 by 3 the answer is repeating 0.3333....

Answer: You didn't give choices but here are all of them

Step-by-step explanation: 1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 37, 39, 55, 65, 77, 91, 105, 111, 143, 165, 185, 195, 231, 259, 273, 385, 407, 429, 455, 481, 555, 715, 777, 1001, 1155, 1221, 1295, 1365, 1443, 2035, 2145, 2405, 2849, 3003, 3367, 3885, 5005, 5291, 6105, 7215, 8547, 10101, 14245, 15015, 15873, 16835, 26455, 37037, 42735, 50505, 79365, 111111, 185185, 555555

Answer

The factors of 55 are 1, 5, 11, and 55.

Step-by-step explanation:

Answer:

1,120 rooms

Step-by-step explanation:

You need to find out how many hotel rooms are on one floor, and then multiply that by 28. So each room is 16ft x 28ft, which comes out to be 448ft^2. Then to find how many of these rooms go onto one floor, you must divide 18,000 by 448. This equals about 40. So 40 rooms per floor, times 28 floors is: 1,120. And that's your answer! Make sure you understand how we got that. If you have any questions I can help! :)

Answer: D/193,560

Step-by-step explanation: 193,560 divided by 5 = 38712

193,560 divided by 6 = 32260

Answer:

D

Step-by-step explanation:

Answer:

The  variable are

A and  B

Step-by-step explanation:

Generally we can define a variable as a name of a placeholder representing a value  now considering the option to be selected from we see that

    The students' verbal SAT scores is a variable  because it is a phrase or a place holder that represent a value (in the is case a  numerical value)  which the score its self

    The second option  The students' percentage of words that were correctly recognized on the original list is also a variable because it is a placeholder of a name (in this case a phrase ) that represented the actual value itself

  The  third option The 75 students is not a variable because it is not representing any value but itself is the value

  The  third option The 750 students is not a variable because it is not representing any value but itself is the value

Answer:

The  upper bound of the 90% confidence interval is 0.181

Step-by-step explanation:

From the question we are told that

  The  sample size is  n  =  582

  The  number of accidents  is  k  =   91

Generally the sample proportion is mathematically represented as

         [tex]\r p = \frac{ k}{n} = \frac{582}{91 }[/tex]

=>     [tex]\r p = 0.1564[/tex]

Generally the confidence level is  90% , the level of significance is  [tex]\alpha  =  (100-90)\%[/tex]

=> [tex]\alpha =  0.10[/tex]

From the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  [tex]Z_{\frac{\alpha }{2} } =  1.645[/tex]

Generally the margin of error is mathematically represented as

       [tex]E  =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\r p (1 - \r p)}{n} }[/tex]

=>       [tex]E  =  1.645* \sqrt{\frac{ 0.1564 (1 - 0.1564)}{582} }[/tex]

=>        [tex]E =  0.0248[/tex]

Generally the 90% confidence interval is mathematically represented as

     [tex]0.1564 - 0.0248  <  p  <  0.1564  -0.0248[/tex]

=>   [tex]0.1316  <  p  <  0.1812[/tex]

Answer and Step-by-step explanation:

Random sample = 582

No. of accidents = 91

P = 91 / 582 = 0.156

Confidence interval for proportion of accidents:

P ± z √(p(1-p)/n)

Where,

n = 582

p = 0.156

z = 1.645

Formula:

P ± z √(p(1-p)/n)

put these values in formula, we get:

 = 0.156 ± 1.645 √(0.156(1-0.156)/582)

 = 0.156 ± 1.645 √(0.1316/582)

= 0.156 ± 1.645 (0.01483)

= 0.156 ± 0.0244

= (0.1804, 0.1316)

Answer:

  see attached

Step-by-step explanation:

The usual methods of long division use place value. Each quotient digit is aligned over the appropriate dividend digit to give it the proper place value.

Answer: $10,875

Step 1: Subtract.

10,950 - 75 = 10,875.

Step 2: Add a dollar sign.

$10,875

Hope this helps!

Answer:

just add up the 2 numbers pretty simple

Step-by-step explanation:

53.2 plus 29.4

Answer: 82.6 lb

Step-by-step explanation:

Since the restaurant is buying the pounds given from the farmer, add the pounds together.

Add

53.2 + 29.4 = 82.6

Hence, the restaurant bought 82.6 pounds of vegetables.

Answer:

3.2 x 10^5

Step-by-step explanation:

Answer:

3.2 x 10^5​

Step-by-step explanation:

it had a bigger exponent.

Answer: Two angles are called complementary when their measures add to 90 degrees. Two angles are called supplementary when their measures add up to 180 degrees.

Step-by-step explanation:

Answer:

90°

Step-by-step explanation:

Answer:

G(x) =0.4/0.7

F(x)= 6.6/14

Step-by-step explanation:

G(x)= 0.4/0.7

F(x)= 4(0.4)+5

=6.6

4(0.7)+5

=14.

Dm me if I'm wrong. If not, please mark as brainliest

Answer:

Given the following geometric sequence, find the common ratio. {0.45, 0.9, 1.8, ...} 0.45 0.9 2

Given the following geometric sequence {0.45, 0.9, 1.8, ...}, the common ratio is 2. The common ratio = 1.8/0.9 = 0.9/0.45 = 2

Answer:

$56 I think

Step-by-step explanation:

because 30% of 80 is 24 and 80-24=56

Answer:

Step-by-step explanation:

30*1.6 = 48 km per second

48 * 2 = 96 kilometres

this is not rounded!!

9514 1404 393

Answer:

  A) 226.98 in^2

  B) 120 in^2

  C) 106.98 in^2

Step-by-step explanation:

A) The diagonal of the rectangle is the diameter of the circle. The area can be found using the formula ...

  A = (π/4)d^2

  A = (π/4)(17 in)^2 = 72.25π in^2 ≈ 226.98 in^2

__

B) The area of the rectangle is the product of its length and width:

  A = LW

  A = (15 in)(8 in) = 120 in^2

__

C) The shaded area is the difference between the circle area and the rectangle area:

  shaded area = (226.98 in^2) -(120 in^2) = 106.98 in^2

Answer:

(-2,-1)

Step-by-step explanation:

The solution is,  x = 3.06 and, y = -7.33..

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

here, we have,

5x + 4y = -14 ..(1)

y = -7x - 15

i.e. 7x + y = -15 ...(2)

for solving now, we multiply (2) by 4 , then subtract from (1),

we get,

5x + 4y = -14

20x + 4y = -60

------------------------

15x = 46

or, x = 3.06

and, y = -7.33

Hence, The solution is,  x = 3.06 and, y = -7.33.

To learn more on equation click:

brainly.com/question/24169758

#SPJ2

Step-by-step explanation:

1. Let the number of books sold on Monday be x.

2. And, The no. of Books sold on Tuesday be 2x , which is twice as the books sold on monday.

3. Now, The no. of books sold on Wednesday be 2x-6 ,

which is fewer than the books sold on Tuesday.

Where Total no. of books sold on 3 days is 19.

so, The equation be like: x+2x+2x-6 = 19

Answer:

m = 5

Step-by-step explanation:

On Tuesday, she sold twice as many books as she did on Monday. An equation is now formed from this:

I Tu = Mo * 2

On Wednesday, she sold 6 fewer books than she did on Tuesday. An equation is now formed from this:

II We = Tu - 6

During the three days Rachel sold 19 books. An equation is now formed from this:

III Mo + Tu + We = 19

The task says that you should just use one equation to find out how many books were sold on Monday. So take the last equation and replace Tu and We with terms in which Mo occurs.

Substitute equation I into equation III:

IIIa Mo + Mo*2 + We = 19

Replace Tu in Equation II with Equation I:

II a We = Mo * 2 - 6

Substitute equation IIa into equation IIIa:

IIIb Mo + Mo * 2 + Mo * 2 - 6 = 19

Now the equation is converted to Mo (Mo = m):

m + m * 2 + m * 2 - 6 = 19   | + 6

m + 2 m + 2 m = 25

5 m = 25                              | : 5

m = 5

Answer:

slope is -3

Step-by-step explanation:

use slope equation, shown in picture hope this helps