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12345 [234]
3 years ago
13

Find only the rational roots of x4 – 9x3 + 16x2 + 18x – 36 = 0

Mathematics
1 answer:
laila [671]3 years ago
8 0
<span>x² - 18x - 4 = ox² - 18x = 4x² - 18x + (18/2)² = 4 + (18/2)²x² - 18x + 81

</span>
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44+88= __ (2+4)<br><br> 11<br> 6<br> 2<br> 22
DENIUS [597]
Dang I was just about to say 22
8 0
3 years ago
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3√6-4√6 Please simplify
Eva8 [605]

Answer:

= -√6

Step-by-step explanation:

1) collect like terms by subtracting coefficients:

3√6 - 4√6

(3-4)√6

2) calculate (3-4):

(3-4)√6

-1√6

3) the coefficient of -1 does not have to be written, but the negative sign remains:

-1√6

-√6

so therefore:

-√6 is your answer

3 0
3 years ago
A merchant has coffee worth $20.00 per pound that she wishes to mix with 70 pounds of coffee with​ $90.00 per pound to get a mix
Crank

20x-1000 +4000 = 60x

20x-60x= -4000 +1000

-40x= -3000

x= -3000/-40

75 The mix will be 75 lbs

And $20 coffee will be 75 -50 = 25lbs


6 0
3 years ago
There are 4 consecutive integers that have a sum of 54. What is the greatest of the 4 integers?
Tanya [424]

Answer:

x + x-1 + x-2 + x-3 =54.

x-1

3 0
2 years ago
Read 2 more answers
Peter learns the following: A cheetah travels about 0.15 kilometers in 5 seconds. A snail travels about 1.5 centimeters in 5 sec
NNADVOKAT [17]
Cheetah travels 0.15 km in .....................5 seconds or
                          15000 cm ......................5 seconds

a snail travels 1.5 cm in ...........................5 seconds
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149.985 meters which is choice A
4 0
3 years ago
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