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Olenka [21]
3 years ago
8

Which of these is an example of a non-random sample?

Mathematics
2 answers:
klemol [59]3 years ago
7 0

Answer:

B is the answer because its an example of a non randon sample

Black_prince [1.1K]3 years ago
3 0

Answer:

it is D :)

Step-by-step explanation:

trust me ;)

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2(3x−5a)+9(2a−7b)+3(5a−2x)=0
alexdok [17]

Answer:

a=63b/23, b=23a/63

7 0
3 years ago
Questions. multiple choicw
jeyben [28]
11. 8 * 18 = 144 in³, Option D

12. Half the height of 8 cm is 4 cm. Volume = 4 * 6 * 10 = 240 cm³, Option D

13. Double the dimensions you get 8 cm for the height, 6 cm for the radius. Then plug in. V = pi * (6)² * 8 >> pi * 36 * 8 = 288pi or ≈ 904.78, Option C

14. Half of all the dimensions are 1 in, 4 in, and 3 in. 1 * 4 * 3 = 12 in³, Option B

15. \frac{10}{16} =  \frac{x}{18} >> 16x = 180 >> x = 11.25 so Option B

16. Option D, 10 cm.

17. Option C, 8.5 in

18. Option B. 10.2 km

19. Option D. 0.82

20. cos 30 = b / 11.5 >> b = 11.5(cos (30)) = 9.96 m, Option C. 
6 0
3 years ago
Which of the following expressions has the greatest value?
Vilka [71]

Answer:

2^5

Step-by-step explanation:

1^10 = 1 (1*1*1*1*1....)

5^2 = 25 (5*5)

2^5 = 32 (2*2*2*2*2)

3^3 = 27 (3*3*3)

5 0
3 years ago
What is the answer to this maths question?<br><br> 0.24/0.012=
Igoryamba
0.24/.012 Answer= 20
You just divide the .24 by .012

4 0
3 years ago
The weekly incomes of a large group of executives are normally distributed with a mean of $2,000 and a standard deviation of $10
cestrela7 [59]

Let X be the weekly incomes of a large group of executives. The weekly incomes of a large group of executives follows Normal distribution with mean $2000 and standard deviation $100.

μ =2000, σ =100

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Z = \frac{x-mean}{standard deviation}

= \frac{2100 - 2000}{100}

Z = 100/100

Z = 1

The z score for income $2100 is 1

6 0
3 years ago
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