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Gnesinka [82]
3 years ago
10

Is 8.4 an irrational number?

Mathematics
2 answers:
OleMash [197]3 years ago
6 0
Yes because an irrational number is a number that cannot be written as a simple fraction
zhannawk [14.2K]3 years ago
3 0
No because it is a terminating decimal
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Solve the linear inequality below.<br> 9x – 8 &gt; 4x + 7
Anna71 [15]

Answer:

Step-by-step explanation:

9x-4>4x+7

-4x

5x-4>7

+4

5x>11/5

x>2.2

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3 years ago
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You and a friend start riding bikes toward
Setler [38]

Answer:

1.5 hours

I traveled farther

2 miles

Step-by-step explanation:

\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}

My speed

\dfrac{2\dfrac{1}{6}}{\dfrac{1}{4}}=\dfrac{\dfrac{13}{6}}{\dfrac{1}{4}}=\dfrac{26}{3}\ \text{mph}

Speed of my friend

7\dfrac{1}{3}=\dfrac{22}{3}\ \text{mph}

Time passed for both me and my friend will be equal if we start at the same time and the combined distance covered by both of us will be 24 miles. Let t be the time taken to meet

\text{Distance}=\text{Speed}\times\text{Time}

\dfrac{26}{3}t+\dfrac{22}{3}t=24\\\Rightarrow \dfrac{48}{3}t=24\\\Rightarrow 16t=24\\\Rightarrow t=\dfrac{24}{16}\\\Rightarrow t=1.5\ \text{hours}

So, we meet each other after 1.5 hours.

Distance traveled by me

\dfrac{26}{3}\times 1.5=13\ \text{miles}

Distance traveled by my friend

\dfrac{22}{3}\times 1.5=11\ \text{miles}

So, I traveled farther by 13-11=2\ \text{miles}.

7 0
3 years ago
PLEASE ITS DUE TODAY. Which expression has a conffcient of 7?
gregori [183]

Answer:

the first one

Step-by-step explanation:

because x has an coefficient

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3 years ago
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Irina-Kira [14]

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10

Step-by-step explanation:

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3 years ago
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Alex_Xolod [135]
<span>The inner core is made of solid iron, and it is surrounded by the liquid iron of the outer core. It is solid because the extreme pressure at the center of the earth prevents it from melting, despite the unimaginable temperatures.</span>
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