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anygoal [31]
1 year ago
7

Doctors recommend that teenagers sleep between 9 and 912 hours each night. Melody and Wilmer construct a box plot to display sle

ep data collected from two samples of students. Do these data support the petition to delay the school starting time so school starts 1 hour later? Explain
Mathematics
1 answer:
Snowcat [4.5K]1 year ago
7 0

Answer:

Yes because I can see people very sleep-deprived and even if 7 hours is not enough, it's better than 6. For the people who sleep 9 and a half hours, they have 1 more hour to get ready. The median is 8 which most likely means, most of the students will be able to sleep the recommended amount with the extra hour.

Step-by-step explanation:

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Find all the zeroes of the polynomial function f(x)=x^3-5x^2+6x-30 using synthetic division.
WITCHER [35]
Write the coeeficientes of the polynomial in order:

  | 1   - 5   6   - 30
  |
  |
  |
------------------------

After some trials you probe with 5

   | 1   - 5       6     - 30
   |
   |
5 |        5      0       30
-----------------------------
     1     0      6        0 <---- residue

Given that the residue is 0, 5 is a root.

The quotient is x^2 + 6 = 0, which does not have a real root.

Therefore, 5 is the only root. You can prove it by solving the polynomial x^2 + 6 = 0.
3 0
2 years ago
Write 177 as a decimal, rounded to the nearest hundredth.
jek_recluse [69]

Answer:

1.77 is the answer.

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3 0
3 years ago
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What is the least common denominator for these two rational expressions n^4/n^2+2n+1,7/n^2-8n-9
sergeinik [125]

Answer:

Step-by-step explanation:

n²+2n+1 = (n+1)(n+1)

n²-8n-9 = (n+1)(n-9)

the least common denominator for these two rational expressions is :

(n+1)(n-9)

7 0
3 years ago
PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
MAVERICK [17]

Answer:

(-2,-5)

Step-by-step explanation:

y = 2x-1

3x-y = -1

We can use substitution

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Now we need to find y

y = 2x-1

y = 2(-2) -1

y = -4-1

y = -5

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3 0
3 years ago
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wel

Answer:

its  n II m

Step-by-step explanation:

Its one of the things I remember from geometry XD

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