Is C and D because 10x^2-6x^2=36+64
4x^2=100
x^2=25
x= -5 or 5
Show another picture i cant see you
Answer: 12.4 + 1.1x + 2.2x^2 + 2.3x^3
Step-by-step explanation:
add the like variables
Answer:
Diameter of tank = 19.5 ft
Step-by-step explanation:
Volume of cylinder = Base area x Height.
Base area = Area of circle

Height = 20 ft.
Volume of tank = 6000 cubic feet .

Diameter of tank = 19.5 ft