What is the slope of the line on the graph?
1 answer:
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Answer:
The height is 20 cm.
Step-by-step explanation:
First, we have to know that the volume formula is V = πr²h and the base area of cylinder is a circle. So we can let πr² be 77 cm² . Then we have to substitute the following values into the formula :
Let πr² be 77,
Let v be 1540,
Write the system in augmented-matrix form:
Row reduce this matrix:
- Add -1(row 1) to row 3:
- Add 3(row 4) to row 3:
- Multiply row 3 by 1/5:
- Add -2(row 3) to row 4:
- Add -2(row 3) and -1(row 4) to row 1:
This matrix tells us that ,
, and
, but clearly
, so there is no solution.