Use the attached figure to guide yourself through the explanation. In the figure:

.
We know that:

Also remmeber that the area of a triangle is:

The hegiht is shown in the figure in red, the base is just the b side.
Using the angle C the area of the triangle is:

Now taking the derivative of the area 2A with respect to t we have:

Replacing with the right values:

yields:
Answer:
Ray AC.
Step-by-step explanation:
They are the same; if you look at the figure, you can see that A and C are the same distance from each other and a ray in either direction would be equivalent to its counterpart.
Answer:
$3 per lawn
Step-by-step explanation:
one point is (5,15) if you look and divide another would be (1,3) so the rate of price would be $3 per lawn
The two numbers are 28 and 29.
Answer:
A=6/5 B=0.111... C=166 2/3%
Step-by-step explanation:
i hope this helped you :)