A sailboat travels 48 miles upstream in 6 hours and return back downstream in 4 hours. What is the speed of the boat in still wa
1 answer:
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Answer:
1.
2.
4. 22
Step-by-step explanation:
1.
2.
Where a is the side
We are given an area o square =
So,
4. We are given that the solution of quadratic equation -9 and 9
So, equation becomes:
So, in the given equation
z should be the number from which if we subtract 103 so we get 81
Substitute z = 22
Thus the value of z is 22