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yawa3891 [41]
3 years ago
14

Jacob wanted to know what the most popular sneakers brand was for his classmates. His class had 30students. To save time he aske

d the first 10 boys he met. Is this a random sampling for the brand of sneakers? Why or why not?
Mathematics
1 answer:
Galina-37 [17]3 years ago
7 0
No. This is not random sampling as the students chose are not chosen at random. Random sampling would be something done where each sample has equal probability of being chosen. Clearly this is not random sampling.
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Select ALL the correct answers.
jolli1 [7]

Answer:

(4x+5)(-3x-1) = -12x²-19x-5

Option A:

   (-16x² + 10x - 3) + (4x² - 29x - 2) = -12x²-19x-5

   Option A is correct.

Option B:

   3(x - 5) - 2(6x² + 9x + 5) = -12x²-15x-25

   Option B is wrong.

Option C:

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   Option C is correct.

Option D:

   (2x² - 11x - 9) - (14x² + 8x - 4) = -12x²-19x-5

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4 0
2 years ago
For an upcoming field trip to the science center, the school will allow students to select one extra activity. The school survey
Pani-rosa [81]

The total amount that would be spent on all the activities is  $1605.40.

<h3>What is the total amount?</h3>

The total amount that would be spent on movies = (14/25) x 1200 x 1.55  = $1041.60

The total amount that would be spent on planetarium tickets = (7/25) x 1200 x 1.05 =352.80

The total amount that would be spent on backstage passes = (4/25) x 1200 x 1.10 =211.20

Total amount = 211.20 + 352.80 +  $1041.60 = $1605.40

Please find attached the complete question. To learn more about addition, please check: brainly.com/question/349488

7 0
1 year ago
What are all the factors of 32? A 2, 4, 8, 16 B 1, 2, 16, 32 C 1, 2, 4, 8, 16, 32 D 2, 4, 6, 8, 12, 16, 32
Natasha2012 [34]

What are all the factors of 32?

answer : ( C ) 1, 2, 4, 8, 16 and 32.....

4 0
2 years ago
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mixer [17]

Answer:

280

Step-by-step explanation:

you multiply 10 to 33 and that is p

8 0
3 years ago
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What is the median of 7, 12, 13, 40, 88, 95, 95 HURRY!!
bija089 [108]
To find the median you have to put all the numbers in order from smallest to largest and find the one that's in the middle.
All of the numbers listed are already in order, and the one that lies in the middle is 40. So the answer is 40.
4 0
3 years ago
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