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77julia77 [94]
3 years ago
14

Which of the following situations can be represented by the expression 3n – 15 ? Select all that apply. ​

Mathematics
1 answer:
densk [106]3 years ago
6 0

Answer: B

Step-by-step explanation:

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What is the solution of 3/x+8 =-4?<br> Ox= -72<br> O x= -66<br> O x = 58<br> O no solution
castortr0y [4]

Answer:

There is no solution the answers there is not the right answer

4 0
3 years ago
The difference between an observational study and an experiment is that:
yulyashka [42]

Answer:

B

Step-by-step explanation:

An experiment is a study carried out in a controlled environment where the person undertaking the research hopes to understand cause and effect between the independent and dependent variables. An example of a experiment is the palovian experiment

The independent variable is the variable that the person carrying out an experiment changes or manipulates. the independent variable usually have a direct effect on the dependent variable

The dependent variable is the variable that is being measured in an experiment. It is usually affected by the independent variable

Observational study is the study where the researcher observes and measures cause and effect between independent and dependent variables without trying  to control or influence the population

4 0
3 years ago
rectangular cake pans X and Y are similar. The ratio of the width of the pan X to the width of pan Y is 3 : 4. The length of pan
Vikki [24]
We have two rectangles such as:
Rectangle 1 = X
Rectangle 2 = Y
Where the ratio of the two is:
Ratio = X / Y = 3/4
If x length is 10, we can solve for y length such as:
10 /Y length =3/4
Y length = 40/3 = 13.33

If x width is 5, then we can solve for y width such as:
5/y width = 3/4
y width = 20/3 = 6.67

The Perimeter of Pan Y is shown below:
Y perimeter = 2(6.67) + 2(13.33)
Y perimeter = 40

The answer is 40 inches.
3 0
3 years ago
Factor the polynomial. 2x3 + 4x2 + 8x
Wewaii [24]
The answer is c because you is multpliying 
4 0
3 years ago
Keegan deposits into her savings account at the beginning of the year. The account earns 3% simple interest each year. She has $
fiasKO [112]

Answer:

She deposits $350 into the account at the beginning of the year.

Step-by-step explanation:

Let us assume that Keegan deposits $P into her savings account at the beginning of the year.

The account earns 3% simple interest each year and she has $360.50 in her account at the end of the year.

If Keegan did not make any additional deposits or withdrawals during the year.

So, we can write that P[1+\frac{3}{100} ]= 360.50

⇒ P = $350 (Answer)

7 0
3 years ago
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