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Stolb23 [73]
3 years ago
13

NEED HELP 20 POINTS !!

Mathematics
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

A. Frame

Step-by-step explanation:

This is because it does not contain the who population and it is the place where the participants of the experiment are selected. It is not the control group because this includes people who were not even in the experiment.

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D) Round 0.00208815 to 3 significant figures.
Lostsunrise [7]

Answer:

= 0.00209

Step-by-step explanation:

8 0
3 years ago
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1. Determine if the two expressions are equivalent and explain your reasoning.
Elena-2011 [213]
1. Yes because of the constant and coefficient if you add it. Like the answer is 5m +4.

6 0
4 years ago
Point B has coordinates ​(2​,1​). The​ x-coordinate of point A is negative 1. The distance between point A and point B is 5 unit
Gwar [14]

Answer:

A = (-1,5) or  (-1,-3)

Step-by-step explanation:

A = (-1,y)    B = (2,1)

 

(Distance from A to B) = √[(-1-2)² + (y-1)²] = 5

                                    =√[9 + y² - 2y + 1] = 5

Squaring on both sides

                                     =  y² - 2y + 10 = 25

                                       =y² - 2y -15 = 0

                                      = (y-5)(y+3) = 0

                                         y = 5 or -3

Therefore, A = (-1,5) or  (-1,-3)

6 0
3 years ago
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If f(x) = e^[3ln(x^2)], then f'(x) = ?
kherson [118]
You might need to give out the choices, if there are any. thanks for asking.
8 0
3 years ago
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<img src="https://tex.z-dn.net/?f=3x%5E3%20-%207x%5E2%20%5C%20x" id="TexFormula1" title="3x^3 - 7x^2 \ x" alt="3x^3 - 7x^2 \ x"
MaRussiya [10]
X(3x^2-7x+1)
You can only factor out a “x”
6 0
3 years ago
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