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Cerrena [4.2K]
3 years ago
5

PLEASE HELP ! I WILL REWARD BRAINLIEST !!

Mathematics
1 answer:
Zarrin [17]3 years ago
7 0
Every fifth student = systematic
5 random students = random
used the only ones that were = voluntary
survey to different grades = stratified 
first 10 students she saw = Convenience  <span />
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What is the simplified polynomial and the value
Elanso [62]

The simplified polynomial is; xy(x²y - xy² +1) and; the value when x=-3 and y=2 is; -186

From the polynomial given;

  • x²yxy -xy²xy +xy.

The polynomial can be factorised to yield a simpler form as follows;

  • xy(x²y - xy² +1).

This is so because, xy is a common factor.

The value is therefore;

  • (-3×2)((-3)²2 - (-3×2²) +1)

  • -6(18+12+1)

= -186

Read more on polynomials;

brainly.com/question/2833285

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2 years ago
Whats the missing length indicated?!? help!!
jeka94

Answer:

A) 27

Step-by-step explanation:

\frac{16}{16 + 12}  =  \frac{63 - ?}{63}

➡️ \frac{4}{7}  =  \frac{63-? }{63}

➡️ 63 - ? = 36

➡️ ? = 27

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3 years ago
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I believe $1.42 would be taken off of the bill:))
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