1 pound = 453.59237 grams
1 cubic inch = 16.387064 milliliters
19.3 grams * 1 pound / 453.59 grams =
<span>
<span>
<span>
0.0425494389
</span>
</span>
</span>
pounds
1 cubic inch * 16.387
<span>
<span>
0.0425494389 * 16.387 = </span></span><span><span><span>0.6972576553
pounds / cubic inch
</span> </span></span>
Part A
The graph is shown below as an attached image.
The diagram shows a straight line that goes through the two points (0,-3) and (1, -5)
I'm using GeoGebra to graph the line.
side note: (0, -3) is the y intercept which is where the graph crosses the y axis.
==================================================
Part B
Answer is choice 2
The graph can be written in the form y = mx+b, so it is linear
In this case, m = -2 is the slope and b = -3 is the y intercept
We can write the slope as m = -2 = -2/1. This tells us that we can move down 2 units and then over to the right 1 units to get from point to point. This process of "down 2, over to the right 1" happens when moving from point A to point B in the diagram below.
To solve for cos use
adjacent over hypotenuse
divide the lengths of the sides
adj. / hyp.