Answer:
C)
Step-by-step explanation:
=x/x+6 ÷ x+6/x
= x/x+6 × x/x+6 = x²/x²+36
Note that the domain of a function whose graph is shown is the projection of the graph into the x-axis.
So, if we projected (or mapped) the graph to the x-axis, the whole negative x-axis, + 0, would be 'colored in blue'. So, the domain is (-∞, 0].
Similarly, the range is found by mapping into the y-axis. So, we see that the range of the function is (-∞, 0], as the whole negative y-axis, +0, would be colored in blue.
The only right answer is: the domain and the range of the function are the same.
Answer:
The length of the circumference is or
Step-by-step explanation:
<u><em>The question in English is</em></u>
On a court, the central circumference will be painted, which has a diameter of 5 m. What is the length of the circumference?
we know that
The circumference of a circle is given by the formula
we have
substitute
This is the exact value
assume
Answer:
Here we will use the relation:
Density = mass/volume.
We know that:
Mass = 1485g
Volume = 750L
Density = 1485g/750L = 1.98 g/L
We do not have the options in order to select the correct one, but knowing this density, we can suppose the possible gases.
Two "common" gases with densities similar to this one are:
Carbon Dioxide, with d = 1.977 g/L
Dinitrogen Monoxide, with d = 1.977 g/L
In both cases, if we round up we will get the same density that we calculated at the beginning, so either of these can be the correct option.