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Scrat [10]
3 years ago
12

Express 3x-x^2 as m-(x-n)^2. Ill give brainliest to correct answer!

Mathematics
2 answers:
Stolb23 [73]3 years ago
6 0

Answer:

\frac{9}{4} - (x - \frac{3}{2} )²

Step-by-step explanation:

Given

3x - x² ← factor out - 1 from each term

= - (x² - 3x)

Using the method of completing the square

add/subtract ( half the coefficient of the x- term)² to x² - 3x

= - (x² + 2(- \frac{3}{2})x + \frac{9}{4} - \frac{9}{4} )

= - (x - \frac{3}{2} )² - 1(- \frac{9}{4} )

= \frac{9}{4} - (x - \frac{3}{2} )²

MaRussiya [10]3 years ago
3 0

Answer:

(i) 2x+3y=9.3

5

ˉ

⇒2x+3y−9.3

5

ˉ

Comparing the equation with ax+by+c=0

a=2,b=3,c=−9.3

5

ˉ

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Jalen made $533.75 while working at his job. He makes $15.25 an hour, how many hours did he work to make that amount of money?
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Answer:

35 hours

Step-by-step explanation:

Typically, people get their paycheck after 2 weeks.

Let say he worked 8 hours a day, a typical amount of hours for the average human who has a occupation.

Multiply the amount of hours by the amount payed every hour.

So 15.25 x 8 is 122

( so in 8 hours jalen made $122)

Add 8 hours, which would now be 16 hours worked.

16 x 15.25 = 244

(so in 16 hours jalen made $244)

Add another 8 hours of work time which would now be 24 hours (1 full day)

24x5.25=366

Add 10 hours on now which would be 34 hours worked (2 days = 48 hours meaning she worked 1 day and 10 hours )

34x15.25=518.50

(getting closer to the amount she earned)

So if we add another hour

which would be 35 hours worked (1 day 11 hours)

35 x 15.25 = 533.75

Therefore, Jalen worked 35 hours.

5 0
3 years ago
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You have a 1.5 litre bottle of water and drink 295 milliletres. Your friend drinks 135 millilitres how much water is left?
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Step-by-step explanation:

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Step-by-step explanation:

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