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3 years ago

Which reason best explains why living things need carbon?

Mathematics

2 answers:

Scrat [10]3 years ago

8 0

Answer:

Carbon Bonds are a source of energy

Step-by-step explanation:

If this were a free answer response question, I would say that the reason would be that carbon can form bonds with many other element, but it wasn't there, so the first option is the closest to my answer.

BartSMP [9]3 years ago

5 0

Answer:

I would go with A. it's the only one that makes sense

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Round 832 to the nearest hundreds place.

elena-s [515]

Answer:

800

Step-by-step explanation:

Look at the tens if it's 0-4 keep the number the same if 5-9 go up one number

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3 years ago

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Help, this is so confusing.

Mnenie [13.5K]

Answer:

D. $0.05

Step-by-step explanation:

Don't worry! I'll help you through it.

So we just have to find the unit rate (price) per apple.

$4 divided by 5lbs bag = $0.80 so, The 1st bag is $0.80 an apple.

$6 bag divided by 8lb = $0.75 an apple.

Now, simply subtract

0.80

-0.75

0.05

So your answer is D, $0.05

Have a great day!

~PumpkinSpice1

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3 years ago

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The elevator in the Empire State Building can pass 80 floors in 45 seconds. How many floors can it pass in 9 seconds?

castortr0y [4]

$\bf \begin{array}{ccll}
floors&seconds\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
80&45\\
f&9
\end{array}\implies \cfrac{80}{f}=\cfrac{45}{9}\implies \cfrac{80\cdot 9}{45}=f$

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3 years ago

What are the coordinates of the foci of the conic section shown below?

Naddik [55]

Answer:

((y + 2) ^ 2)/25 - ((x - 3) ^ 2)/4 = 1 O A. ( (3, - 2 plus/minus sqrt(21)) B. (3, - 2 plus/minus sqrt(29)) O B. O c. D . (3 plus/minus sqrt(21), - 2); (3 plus/minus sqrt(29), - 2)

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2 years ago

The sum of two numbers is 12 and there diffrence is 8 find the 2 numbers

zloy xaker [14]

10 and 2 :)

i hope you have a great day :)

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2 years ago

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