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Brums [2.3K]
4 years ago
11

How many total atoms are in 3 molecules of CO2 (carbon dioxide)?

Mathematics
2 answers:
lutik1710 [3]4 years ago
6 0

Answer:

in three molecules of CO2 there are:

3 Carbon Atoms and 6 Oxygen Atoms

If your looking for the atoms in ONE molecule then there is:

One Carbon Atom and Two Oxygen Atoms

Pachacha [2.7K]4 years ago
5 0

Answer:

9

Step-by-step explanation:

there are 3 atoms in one co2 molecule. 3 x 3=9

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A gym charges a monthly fee and an additional cost for each class. Consider the graph that represents the relationship between t
bija089 [108]
For this problem you need to understand that a linear graph is a straight line (Remember Rise/Run). 
A continous function is <span>a </span>continuous function<span> is a </span>function <span>for which sufficiently small changes in the input result in arbitrarily small changes in the output, so we can already cross off that as an answer.
The Y-Intercept is the cost (in dollars), so this would be to monthly fee. 
Now, onto the rate of change. T</span>he rate of change is <span>represented by the slope of a line. So the more classes you take the more it will increase. Therefore the cost for  one class is the rate of change. 
Lastly, the cost for one class is $10. It's not, since $10 is the intial fee to belong to a gym, so this is false. 

Recap:
True
-The relationship is linear
-The y-intercept represents the monthly fee.
-The rate of change represents the cost for one class.
False
-The relationship represents a continuous function. 
-The cost for one class is $10.
I hope I've helped you, have a great day!</span>
7 0
4 years ago
HELP FAST GIVE A DECENT AMOUNT OF POINTS! FOR EASY!
laila [671]

Answer:

The value of angle is 56.9°

Step-by-step explanation:

First, you have to find the length of hypotenuse using Pythagoras' Theorem, c² = a² + b² :

{c}^{2}  =  {a}^{2}  +  {b}^{2}

let \: a = 8.25 \\ let \: b = 6.45

{c}^{2}  =  {8.25}^{2}  +  {6.45}^{2}

{c}^{2}  = 68.0625 + 41.6025

{c}^{2}  = 109.665

c =  \sqrt{109.665}

c = 10.47cm \: (4s.f)

In order to find θ, you have to apply Sine Rule :

\sin(θ)  =  \frac{opposite}{adjacent}

let \: oppo. = 8.77 \\ let \: hypo. = 10.47

\sin(θ)  =  \frac{8.77}{10.47}

θ =  { \sin( \frac{8.77}{10.47} ) }^{ - 1}

θ = 56.9 \: (1d.p)

4 0
3 years ago
if a school library has 86 fiction books and 74 nonfiction books, what is the percentage of nonfiction books?
hodyreva [135]

Answer:

46.25%

Step-by-step explanation:

First, add both numbers together. (86 + 74).

Next, we have 160. And that is 100%.

Now, we have to find what 74 is compared to 160.

74 is 46.25% of 160.

There's our answer.

3 0
3 years ago
The figure below shows a line graph ad two shaded triangles that are similar
jonny [76]
There is no figure...?
4 0
3 years ago
Suppose we have a regression line where the intercept is 0.24 and the slope is 0.87. Our variable of interest is x. Suppose the
S_A_V [24]

Answer:

Step-by-step explanation:

Margin of Error = Zcritical * Standard error

Zcritical at 5% confidence interval

Z0.065

5 0
3 years ago
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