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Bad White [126]
2 years ago
5

My last math question! I need help. I'm not good at math so I'm relying on who ever do this to do so correctly!!!!

Mathematics
1 answer:
jonny [76]2 years ago
8 0

Answer:

c

Step-by-step explanation:

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Solve (2x + 5)= (2x + 3)(2x - 1)
AlexFokin [52]

(2x + 5)= (2x + 3)(2x - 1)\\2x+5=4x^2-2x+6x-3\\4x^2-2x+6x-3-2x-5=0\\4x^2+2x-8=0\\(4x+1-\sqrt{33})( 4x+1+\sqrt{33})=0 \\ x=\frac{-1+\sqrt{33} }{4} /or/x=\frac{-1-\sqrt{33} }{4}

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Doss [256]

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A

Step-by-step explanation:

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3 years ago
What is the value of v in the equation 3(2v + 1)=-15(5v + 16)​
Darina [25.2K]

Answer:

v = -3

Step-by-step explanation:

6v+3= -75v - 15 (16)

81v=  -243

then put it over -3 then

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3 years ago
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HELP 99 PTS=50 PTS Theresa has two brothers, Paul and Steve, who are both the same height. Paul says he is inches shorter than t
iren [92.7K]

Answer:

Theresa is 58.82 in tall

Step-by-step explanation:

Let 

x----------> Paul and Steve heights

y----------> Theresa height


we know that

1 1/2-------> 3/2---> 1.5

1 1/3-------> 4/3----> 1.33

 Paul says he is 16 inches shorter than 1 1/2 times Theresa's height

x=1.5y-16-------> equation 1


Steve says he's 6 inches shorter than 1 1/3 times Theresa's height

x=1.33y-6------> equation 2


equals 1 and 2

1.5y-16=1.33y-6

1.5y-1.33y=-6+16

0.17y=10----------> y=58.82 in


x=1.5y-16------> 1.5*(58.82)-16------> x=72.24 in


the answer is

Theresa is 58.82 in tall



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3 years ago
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A colony of 10 bacteria doubles in size
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Answer:

40

Step-by-step explanation:

IT has doubled in size twice 75 =20  +75 =40 = 150 minutes.

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3 years ago
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