EASY 5 POINTS!!! You have a new pool and want to know its volume. The pool is 5 feet deep and has a radius of 7 feet. About how
much water can the pool hold? Use 3.14 for pi.
2 answers:
Answer:
The volume of water that can be hold by the pool is approximately 770 cubic feet.
Step-by-step explanation:
To calculate it we have to use the volume formula for a cylinder. This is:
Solving the equation with the given values:
The volume of water that can be hold by the pool is approximately 770 cubic feet.
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The equation is -
=
Solution
<u>Step 1:</u>
Take square on both sides, we get
3x - 2 -2 = x +2
<u>Step 2:</u>
Subtract 3x - 2 from both sides, we get
-2
<u>Step 3:</u>
Again, square on both sides in order to get rid of the square root from the above equation, we get
Now we have to simplify it,
<u>Step 4:</u>
Now we have to solve this quadratic equation, in order to get the solution.
We get x = 2 and x = -2, When we verifying solution in the original given equation, the solution does not satisfy the equation.
Reason: We get negative number in the square root.
Therefore, it has no Roots.
<em>Answer: b) No roots</em>
Formula for permutation is:
Plug in the values:
Required number of ways = ²C7
- n = 7
- r = 5
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