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jek_recluse [69]
3 years ago
13

Solve the following equation for x.

Mathematics
1 answer:
zalisa [80]3 years ago
6 0

Answer:

c

Step-by-step explanation:

6x² + 54x + 120 = 0

divide by 6

x² + 9x + 20 = 0

(x² + 5x) + (4x + 20) = 0

x(x + 5) + 4(x + 5) = 0

(x + 4) (x + 5) = 0

x + 4 = 0, x + 5 = 0

x = -4, x = -5

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Is 9.521521521 rational or irrational
enyata [817]

If the numbers after the decimal terminate, yes, it's rational.

9.521521521 = 9,521,521,521 / 1,000,000,000

If they don't terminate, but the pattern continues (which I suspect is the case here), yes, it's still rational.

If <em>x</em> = 9.521521521…, then

1000<em>x</em> = 9521.521521521…

Subtract <em>x</em> from this to eliminate the fractional part:

1000<em>x</em> - <em>x</em> = 9521.521521521… - 9.521521521…

999<em>x</em> = 9512

<em>x</em> = 9512/999

If they don't terminate, but the pattern does <em>not</em> continue, meaning the next few digits could be something random like

9.521521521<u>19484929271283583457</u>…

then the number would be irrational.

7 0
3 years ago
The weight of Darrin's phone is 3.405 ounces. What is 3.405 written in expanded form
Verizon [17]
Its 3.000+400+5 that's your answer
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3 years ago
Help a young girl out man I’m trying to pass this semester
Alex787 [66]
This is a scalene triangle.
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alexander spins a spinner with four equally-sized regions and flips a coin. how many outcomes are possible?
Zielflug [23.3K]
8 outcomes the other guy is wrong . The coin multiplies it by 2
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4 years ago
You want to get a pizza the pizza is 14.00 but 50% off. How much will the pizza cost with 8% delivery tax Fees included?
nignag [31]

Answer:

7.56

Step-by-step explanation:

14x.50(the remainder after you subtract the percent from 100) = 7

8% of 7 is 0.56

7+0.56=7.56

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