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joja [24]
3 years ago
15

BRAINLIEST + 30PTS

Mathematics
2 answers:
tatiyna3 years ago
6 0

Answer:

x=5, y=3 and xy=8

Step-by-step explanation:

victus00 [196]3 years ago
3 0

Answer:

\frac{ {x}^{2}  {y}^{5} }{xy ^{3} }   \\   \frac{ {x}^{2} }{x}  \times  \frac{ {y}^{5} }{ {y}^{3} }  \\ x ^{2 - 1}  \times  {y}^{5 - 3}  \\  {x}^{1}  \times  {y}^{2 } \\ x {y}^{2}

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What is the factorization of 49b2 − 81?
Ann [662]

Answer:

Step-by-step explanation:

49b² - 81 = (7b)² - 9 ²

by identity : 49b² - 81 = (7b -  9)( 7b + 9)

5 0
2 years ago
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for every left-handed person, there are about 4 right-handed people. if there are 30 students in a class, perdict the number of
Amanda [17]
So in every 5 people, theres 1 left and 4 right.

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7 0
2 years ago
Negative 7 bigger or smaller than negative 8
dalvyx [7]
-7 is bigger than -8          
4 0
2 years ago
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The most recent poll of 50 randomly-selected members of a school club with a total of 80 members showed that 38 are planning to
melisa1 [442]

Answer with Explanation:

Total number of members in School Club = 80 members

Number of member randomly Selected,that is sample size used  (P) = 50 members

Number of members who are planning to vote for Talia = 38 members

Z Score for 95% confidence interval =1.96

it is given that Margin of Error ,E,of the poll using a 95% confidence interval=12%

E=\frac{Z*\sigma}{\sqrt{P}}\\\\ \frac{12}{100}=\frac{1.96 * \sigma}{\sqrt{50}}\\\\ \sigma=4.32890

Standard Deviation=4.3 (approx)

→95% confidence level for students who are planning to vote for Talia as president of the club lie between → 38 + 4.3 = 42.3 to 38 -4.3=33.7.

→So, members which will vote for Talia as president of the club lies between minimum of 33 members and maximum of 42 members.

5 0
2 years ago
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A wasp is a flying insect. In wasps, wing length is coded for by a single gene. Two scientists studying wasps hypothesize that s
Kamila [148]

Answer:

Wasps with long wings can produce offspring with short wings.

Step-by-step explanation:

8 0
2 years ago
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