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Makovka662 [10]
3 years ago
7

A college administrator knows that 70% of the students at her college are from out of state, so she decides to make sure that sh

e includes 70 out-of-state students and 30 in-state students in her survey about admission practices at the college. She has a list of all the out-of-state and in-state students currently enrolled at the college. She randomly selects 70 students from the out-of-state list and 30 students from the in-state list. Which sampling method is she using?
Mathematics
1 answer:
AURORKA [14]3 years ago
7 0

Answer:

stratified random sampling

Step-by-step explanation: Hope this Helps PLZ give brainlest :)

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2x5x1742x2133+12/4= PlS hellllp
Fynjy0 [20]

Answer:

37,156,863

Step-by-step explanation:

2 x 5 x 1742 x 2133 + 12/4 =

10 x 1742 x 2133 +12/4 =

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37,156,860 + 3 =

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The area of a regular octagon is 35 cm squared what is the area of a regular octagon with sides five times as long
KATRIN_1 [288]
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What is the value of X
sashaice [31]

Answer:

x = 7

Step-by-step explanation:

=> 9/72 = 3x-20/56

=> 9×45/72 = 3x-20

=> 27/3 = x

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3 0
3 years ago
8) The height of a building h varies directly as the length and inversely as the width, if h = 25m when l = 10m and w = 5m, find
shtirl [24]

Let h,l, and w represent the height, length, and width of the building respectively

Then

\begin{gathered} h\text{ = }\frac{kl}{w} \\ \text{where k is the constant of proportionality} \end{gathered}\begin{gathered} \Rightarrow k=\frac{hw}{l} \\ \Rightarrow k=\frac{25\times5}{10}=12.5 \end{gathered}\Rightarrow h=\frac{12.5l}{w}

The new value of h = 50m, but l remains the same.

That is l = 10m

Therefore

\begin{gathered} \frac{50}{1}=\frac{12.5\times10}{w} \\ \Rightarrow\frac{50}{1}=\frac{125}{w} \\ \text{Cross multiplying, we have} \\ 50w\text{ = 125} \\ \Rightarrow\text{ w=}\frac{125}{50}=2.5 \end{gathered}

Hence, the width is 2.5m

8 0
1 year ago
What is the solution to x- 9> -15?
Elanso [62]

Answer:

x < -6

Step-by-step explanation:

quick explanation: when you transfer (-9) to the other side it becomes +9.

Therefore, -15+9= -6

4 0
3 years ago
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