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lesya692 [45]
4 years ago
11

-5x2 - 9x + 8 from – 6x2 +5

Mathematics
1 answer:
777dan777 [17]4 years ago
3 0

Answer:

-x^2+9x-3

Step-by-step explanation:

– 6x^2 +5 - (-5x^2 - 9x + 8)

Distribute the minus sign

-6x^2 +5 +5x^2 +9x -8

Combine like terms

-x^2+9x-3

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in 2001 John makes an investment investment and $50,000 decreases in value of the rate of 2.5% per year write an exponential fun
VARVARA [1.3K]

Answer:

$39811.77

Step-by-step explanation:

If we put y as the unit of year, the function will be 50000x0.975^y (100%-2.5% is 97.5%). And so from 2001 to 2010, nine years has passed, so the equation will be 50000x0.975^9 And if you calculate and round the answer to the nearest hundredth (cent), you will find $39811.77.

5 0
3 years ago
Help with this question, ASAP!!
allochka39001 [22]

Answer:

The answer to your question is the third option

Step-by-step explanation:

a)               0.023x³ + 0.4x² - 2.1x + 8.3

                 0.023(2)³ + 0.4(2)² - 2.1(2) + 8.3

                 0.023(8) + 0.4(4) - 2.1(2) + 8.3

                 0.184 + 1.6 - 4.2 + 8.3

                 10.084 - 4.2

                 5.884

b)              0.023(4)³ + 0.4(4)² - 2.1(4) + 8.3          

                 0.023(64) + 0.4(16) - 8.4 + 8.3

                 1.472 + 6.4 - 8.4 + 8.3

                 16.172 - 8.4

                7.772

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Answer:

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Step-by-step explanation:

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