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elena-s [515]
3 years ago
5

I need help!!! does anyone know any of these??? please help!!!

Mathematics
1 answer:
Lena [83]3 years ago
3 0
13. 1
14. 0.12
17.  .375
18. 1
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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
4 years ago
Is (1, 6) a solution to this system of equations?<br> 5x + 2y = 17<br> x + 3y = 19<br> yes<br> no
Ulleksa [173]
Answer:
Yes

Explanation:
5x + 2y = 17

We are given the values (1, 6)

Substitute then into the equation

(I put a question mark to basically ask the question “is 5(1) + 2(6) equal to 17?”)

5(1) + 2(6) = 17?
5 + 12 = 17?
Yes!

Hope this helped and made sense :)
5 0
3 years ago
Read 2 more answers
Check
algol [13]

Answer: Option A is the correct answer, y = x + 2

y - 3 = x-1

Step-by-step explanation:

6 0
2 years ago
Evaluate. –1.65 + (–3.4)
elena55 [62]
Hey there! 

This seems like a algebraic expression

SO,
Remember: negative and negative = positive
                      positive and positive = positive
                     positive and negative = negative
                       negative and positive = negative

In this problem we will be doing negative and negative so that means our answer will be a negative 

Firstly, lets line up our decimals to solve this problem (once when you do that , you can solve it easier)

-1.65 &#10;\\ +&#10;\\ (-3.4)&#10;

Answer: 
-5.05

Good luck on your assignment and enjoy your day

~LoveYourselfFirst:)
6 0
4 years ago
Given a vector with the initial point, (4,2) and the terminal point, (-3,1), find the vector in unit vector form.
Gwar [14]

Answer:

Wish i can help but i don't understand that

Step-by-step explanation:

7 0
4 years ago
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