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3 years ago

[18].Simplify (TTE): x(2x+y+5) - 2(x²+xy+5) + y(x + y)

Mathematics

1 answer:

Dovator [93]3 years ago

4 0

Answer:

$x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 5x -10 + y\²$

Step-by-step explanation:

Given

$x(2x+y+5) - 2(x\²+xy+5) + y(x + y)$

Required

Simplify

We have:

$x(2x+y+5) - 2(x\²+xy+5) + y(x + y)$

Open brackets

$x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 2x\²+xy+5x - 2x\²-2xy-10 + xy + y\²$

Collect like terms

$x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 2x\²- 2x\²+xy-2xy+ xy+5x -10 + y\²$

$x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 5x -10 + y\²$

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A license plate is to consist of 5 digits followed by 5 uppercase letters. Determine the number of different license plates poss

EastWind [94]

Answer:

$5.3044992\times 10^{10}$

Step-by-step explanation:

We are given that a license plate consist of 5 digits and 5 uppercase letters

Digits used=0,1,2,..9

Total number of letters=26

Repetition is not allowed

Total number of odd digits=(1,3,5,7,9)=5

The first place filled by 5

Second place filled by 4

Third place filled by 8

Fourth place filled by 7

Fifth place filled by 6

Sixth place filled by 26

Seventh place filled by 25

Eighth place filled by 24

Ninth place filled by 23

Tenth place filled by 22

Total number of possible different license plates = $5\times 4\times 8\times 7\times 6\times 26\times 25\times 24\times 23\times 22$ = $5.3044992\times 10^{10}$

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3 years ago

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Answer: Slope=-2

Step-by-step explanation:

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3 years ago

Kaylin buys a greeting card for $3.79. She then buys 4 postcards that all cost the same amount. The total cost is $5.11. How muc

Maksim231197 [3]

Answer:

$0.33

Step-by-step explanation:

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3 years ago

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Which type of display would be the most appropriate to compare the sales of 2 different stores for a ten year period?

satela [25.4K]

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3 years ago

Jerry took a sample of 4 employees in his office and observed how many hours they each worked one day.

Illusion [34]

The error in Jerry's calculation is 4.84

The number of employees, N = 4

The mean is calculated as:

$\mu = \frac{10+2+4+8}{4} \\\mu = \frac{24}{4} \\\mu = 6$

The formula for the standard deviation is:

$SD =\sqrt{\frac{\sum{(x-\mu)^2}}{N} }$

This can be further calculated as:

$SD = \sqrt{\frac{(10-6)^2+(2-6)^2+(4-6)^2+(8-6)^2}{4} }\\\\SD = \sqrt{\frac{4^2+(-4)^2+(-2)^2+(2)^2}{4} } \\\\SD = \sqrt{\frac{16+16+4+4}{4} } \\\\SD = \sqrt{\frac{40}{4} } \\\\SD = \sqrt{10} \\\\SD = 3.16$

Jerry thinks the Standard Deviation = 8

The true Standard Deviation = 3.16

Error = |True value - Measured value|

Error = |3.16 - 8|

Error = 4.84

Learn more here: brainly.com/question/18562832

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2 years ago

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[18].Simplify (TTE): x(2x+y+5) - 2(x²+xy+5) + y(x + y) ​

[18].Simplify (TTE): x(2x+y+5) - 2(x²+xy+5) + y(x + y)