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Oliga [24]
3 years ago
11

The graph of f consists of line segments, as shown in the figure.

Mathematics
1 answer:
Rainbow [258]3 years ago
7 0
ختيحينييويم ١٢٣٤ سينسخسيهيخسنييخنيمين ١٢٣٤٧٩٧ تسم
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Please help i will mark brainliest!​
GuDViN [60]

Answer:

Cluster Sampling

Step-by-step explanation:

I cant be 100% sure as i am not in statistics, but by definition cluster sampling is a probability sampling technique where researchers divide the population into multiple groups (clusters) for research (in this case its the phone book). Researchers then select random groups (three random pages) with a simple random or systematic random sampling technique for data collection and data analysis(interviews).

so that appears to be what is happening in this scenario.

6 0
3 years ago
PLZ CAN SOMEONE ANSWER THIS !!
Cerrena [4.2K]

Answer:

(-4,2)

Step-by-step explanation:

First we have to find a common multiple to use to add and find the system of equations. We need to eliminate one of the variables in order to solve.

Since 5 * 3 = 15, and 3 * -5 = 15, -15x and 15x will cancel each other out. Therefore x will be eliminated.

Before:

5x + 2y = -16

3x + 7y = 2

After:

15x + 6y = -48   <----------Now we solve for y

-15x + -35y = -10

+----------------------

-29y = -58

-29      -29

y = 2

Now what we do is we choose and equation and solve for x, since it is still unknown. Any equation is fine but I will choose the second one since it has easy numbers.

3x + 7y = 2

3x + 7(2) = 2

3x + 14 = 2

   -14     -14

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

3x = -12

3        3

x = -4

Therefore our final answer is (-4,2)

5 0
3 years ago
Solve for x.
riadik2000 [5.3K]
I got a different answer..
and i don't see it as one of your choices, also your question is confusing since you're repeating it .-.
But anyways i got \frac{6}{11} ~or~ \frac{36}{66}
3 0
3 years ago
PLZ HELP ASAP WILL GIVE BRAINLIEST :)!!!
Kobotan [32]
9 students earned an 85 or higher.

2 earned 85
1 earned 86
3 earned 91
1 earned 94
2 earned 95.

2+1+3+1+2=9
3 0
3 years ago
Find the slope of a line that is parallel and the slope of a line that is perpendicular to each line whose equation is given. Pl
aleksley [76]
The equations above are all in the format y = mx + c, where m = the gradient, or slope.

So, in the first question, y = 4x + 2, the gradient would be 4, because 4 is m in this equation (the number before the x).

The gradient of a line perpendicular to this line is equal to the negative reciprocal of the gradient of the line. A better way to explain it is if m = the gradient of the line and <u />m' = the gradient of the perpendicular line then:
m' = - \frac{1}{m}

So in the first question, the gradient of the perpendicular line is - \frac{1}{4}.
4 0
3 years ago
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