Think about this. You have one whole pie and you've just cut it into 12 pieces. How many pieces do you have left if you eat 7 of them? 5. That means you have 5/12 of the pie left, so your answer is 5/12.
<em>Please don't forget to choose which answer is Brainliest!</em>
Considering the volume of the cylinder, it is found that Cai has collected 327.9 grams of trace element.
<h3>What is the volume of a cylinder?</h3>
The volume of a cylinder of radius r and height h is given by:
.
In this problem, we have that the radius and the height are given, respectively, by:
r = 9.3 cm, h = 17 cm.
Hence the volume of the cylinder in cubic centimeters is given by:

A water sample shows 0.071 grams of some trace element for every cubic centimeter of water, hence the amount of trace element is given by:
0.071 x 4619 = 327.9 grams.
More can be learned about the volume of a cylinder at brainly.com/question/9408912
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The solution that makes both equations true is 'a', or (2,0), because if you substitute the 2 with the x and the 0 with the y, and solve both equations, you get the same answer. Also, you could try a graphing software, like desmos.
0=-2(2)+4
-4+4
0=0
0=(2)-2
0=0
Answer:
3
Step-by-step explanation: