Answer:
x1 = -4.872983346
x2 = 2.872983346
Step-by-step explanation:
<u>Given:</u>
x^2+2x+7=21
<u>Subtract 21 on both sides to get the right side equal to 0:</u>
x^2+2x-14=0
<u>Use the quadratic formula:</u>
Answer: It will hold 9,000 gallons (I'm guessing as that is the stand unit of water for something like this)
60 * 25 = 1,500
1500 * 6 = 9000
⚘<em>Refer to the attachments for solution!!~</em>
The square root of 81 is 9
d=20
r=10
π=3
