Answer: 8 1/4g/cm³
Step-by-step explanation:
Given the graph :
The rate of change in the mass of copper with respect to volume :
To obtain this, we find the slope or gradient of the graph:
Gradient = Δy / Δx = (y2 - y1) / (x2 - x1)
Drawing a right angled triangle on the anybpart of the line of best fit:
y2 = 40 ; x2 = 4.75 ; y1 = 16 ; x1 = 2
(y2 - y1) / (x2 - x1)
= (40 -16) / (4.75 - 2)
= 24 / 2.75
= 2400/275
= 8.727 g/cm^3
Due to unit and graph scale,, the slope is closest to 8 1/4g/cm³
Answer: 
Step-by-step explanation:
You need to remember the mulplication of signs:

Knowing this, you can distributive the negative sign. Then you get:

Now you need to add the like terms. Then:

Finally, you can order the polynomial obtained in descending order. Therefore, the answer is:

For some reason, the value of "w" is not supplemented into the equation, which is weird, but whatever. I will answer the problem for you.
The answer you are looking for is -5.
Solution/Explanation:
Writing out the expression first
-7/3x+y²
Substituting the given values of the variables, only "x" and "y"
-7/3(6)+(-3)²
Simplifying
(-7/3)(6)=-14
(-3)²=9
So, we will come up with -14+9.
This simplifies to -5.
So, therefore, the final answer to this problem is -5.
Hope this helped answer your question for you. Good day to you.
D 61.28 because you divide 64.50 by 0.05 then which is 3.23 then 64.50 - 3.23
Answer:
theres no picture I cant answer
Step-by-step explanation:
Please answer the last question on my profile too for 23 points