(3x+1) + (2x+8) = 180
5x+9=180
5x=171
The ratio of surface area to volume is the amount of surface area per unit volume of a thing. This is an important value in various topics. In chemistry, this is an important value for chemical reactions. It can show reactivity of a solid material. Also, it has found some importance in biology because it shows how the cells are affected by the environment where that cell is found.<span />
Answer:
why no links? also I think the answer is 5 but I'm just guessing
Answer:
3/4
Step-by-step explanation:
First of all, we need to calculate the slope of the line shown. This can be computed as:

where
is the increment along the y-direction
is the increment along the x-direction
We can choose the following two points to calculate the slope of the line shown:
(-3,2) and (0,-2)
And so, the slope of the line shown is

Two lines are said to be perpendicular if the slope of the first line is the negative reciprocal of the slope of the second line:

Using
, we find that a line perpendicular to the line shown should have a slope of

Answer:
B (HI/GI)
Step-by-step explanation:
Remember Soh Cah Toa.
To<em>a</em> is the trick for tan, meaning the tan function is opposite divided by <em>adjacent</em>. The side opposite of angle G is HI, and the side adjacent to it is GI.