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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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3. Sam and Tim each have savings accounts. Every month they each put in some of their

Setler [38]

Answer:

$y = 30x +50$ --- Sam

$y = 20x +80$ --- Tim

Step-by-step explanation:

Given

Sam Tim

х --- f(x) --------------- g(x)

1 --- 80 --------------- 100

2 --- 110 --------------- 120

3 --- 140 --------------- 140

4 --- 170 -------------- 160

Required

Determine the y value

y value implies the equation of the table

Calculating the equation of Sam

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,80)$

$(x_2,y_2) = (4,170)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{170 - 80}{4 - 1}$

$m = \frac{90}{3}$

$m = 30$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 80 = 30(x - 1)$

$y - 80 = 30x - 30$

Make y the subject

$y = 30x - 30 + 80$

$y = 30x +50$

Calculating the equation of Tim

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,100)$

$(x_2,y_2) = (4,160)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{160 - 100}{4 - 1}$

$m = \frac{60}{3}$

$m = 20$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 100 = 20(x - 1)$

$y - 100 = 20x - 20$

Make y the subject

$y = 20x - 20+100$

$y = 20x +80$

7 0

3 years ago

Four more than a number is 27

son4ous [18]

Answer:

23 is the answer of the question

3 0

3 years ago

Read 2 more answers

Can you plz help me plz

Harman [31]

Answer:b=16

Step-by-step explanation:trust me bro

6 0

3 years ago

Read 2 more answers

PLS ANSWER WHAT IS 3 and 14 hundredths minus 1 and 9 hundredths?

k0ka [10]

Answer:

2 and 5 hundredths

Step-by-step explanation:

3 - 1 = 2

14 hundredths - 9 hundredths = 5 hundredths

hence you get 2 and 5 hundredths

6 0

3 years ago

I need help with number 4

Temka [501]

Hello!

We see that c is less than 27.5. If we have c on the right, we will use <.

Therefore, our answer is B) c<27.50

I hope this helps!

7 0

3 years ago