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vovikov84 [41]
3 years ago
8

Find the product (3x+4y)(x+y)

Mathematics
2 answers:
alisha [4.7K]3 years ago
5 0

Answer:

Step-by-step explanation:

(3x+4y)(x+y)

Solution=3x^2+4xy+3xy+4y^2

=3x^2+7xy+4y^2

ANEK [815]3 years ago
3 0
3x^2 + 7xy + 4y^2 I believe
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In a data set with a normal distribution the main is 59 and standard deviation is three about what percent of the data live betw
jolli1 [7]

Answer:

81.9%

Step-by-step explanation:

In a data set with a normal distribution the mean is 59 and standard deviation is three about what percent of the data live between 53 and 62

Using z score formula

z = (x-μ)/σ, where

x is the raw score,

μ is the population mean = 59

and σ is the population standard deviation = 3

For x = 53

z = 53 - 59/3

= -2

P-value from Z-Table:

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For x = 62

z = 62 - 59/3

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P-value from Z-Table:

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0.81859

Converting to Percentage.= 0.81859

× 100 = 81.859%

Approximately = 81.9%

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a whale was diving at a rate of 2 meter per second how long will it take for a whale to get from an elevation of the surface to
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