Basically looking for the x value of intersection of the two equations. Setting them equal,
2^x + 12 = 15x + 35, which you will get x = 7. Graph it out to get a visual solution.
The number of birds after 7 years would be 140, for both species.
Answer:
-3 degrees per hour
Step-by-step explanation:
This is because if you look at the graph at 7:20pm it is 47 degrees and at 8:20 pm it is 44 degrees
47-44=3
Answer: OPTION D.
Step-by-step explanation:
Given the equilateral triangle shown in the figure, you need to find the value of the altitude "a".
In order to find the altitude, you can use the following Trigonometric Identity:

In this case you can identify that:

Therefore, you can substitute values into
:

Finally, you must solve for the altitude "a". Then, this is:

Notice that this result matches with the value shown in Option D.