Tyler is building a fish tank in the shape of a sphere that has a diameter of 18 inches. Based on Tyler's research, it is recommended to have no more than 1 goldfish for every 693 cubic inches of water. How many goldfish should Tyler buy for his fish tank? Numerical Answers Expected! Answer for Blank 1:

4 fishes

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:  

Volume of a sphere = 4/3 x π x (diameter/2)^3  

Replacing with the values given:  

V = 4/3 x π x (18/2)^3  

v = 4/3 x π x (9)^3 = 3,053.63 in3  

Next, we have to divide the volume of the tank by 693 in3 (volume for each fish)

3,053.63/693 =4.40 = 4 fishes

Feel free to ask for more if needed or if you did not understand something.  

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.