A piece of stone or is shaped like a sphere with a radius of 4 feet what is the volume of the sphere use pi in round the answer to the nearest 10th

so mark-up is 0.4 multiplied by 180 = 72

option a is correct.

only one solution to the system of equations

step-by-step explanation:

if the graph of the equations do not intersects(i.,e if they are parallel) then, there are no solutions that are true for both the equations.

if the graph of the equations intersects, then there is one solution and that is true for both the equations.

since, in the given figure:

the two lines intersect each other

⇒there is only one solution which satisfy both the lines of an equations.

therefore, there is only one solution to the system of equation