Part A: the composite shape is composed of a cone and a half sphere
Part B: The volume of the cone is 1186.92 And the volume of the half sphere is 1526.04
Part C: The volume of the composite shape is the solution of 1186.92+1526.04 = 2712.96
The radius of both the cone and the half sphere is 9 inches and the hight of the cone is 14 inches, using the formula (volume = (1/3) · π · r2 · h) Putting the radius in the r spot and squareing it which is equal to 9x9=82 and putting the hight in the h and turning the pi symbol into 3.14 we get
Volume = (1/3) · 3.14 · 82 · 14
We get the volume of the cone which is 1186.92
Then we use the formula (volume = (4/3) · π · r3) putting the radius in where the r is which is equal to 9x9x9 And changing the pi symbol for 3.14 we get
volume = (4/3) · 3.14 · 729 ÷ 2) = 1526.04
We get the volume of the half sphere which is 1526.04
We then add all of it up to get 1186.92 + 1526.04 = 2712.96
Step-by-step explanation: A is correct because there are 12 cars and 7 trucks. B is correct because there are 7 trucks and 12 cars. C is correct because there are 12 cars and 19 total vehicles(7+12=19). D is incorrect because while there are 7 trucks, there are not 12 vehicles in TOTAL.
