The total amount the plumber earns is made up of a fixed charge and a variable charge. A fixed charge is a charge that remains constant regardless of the number of hours the plumber works. The fixed charge is $25. The variable charge is the charge that increases per hours worked. The variable charge is $50 per hour.
V^2/(1-v^2/c^2)=R v^2=R(1-v^2/c^2) v^2=R-Rv^2/c^2 v^2-Rv^2/c^2=R v^2(1-R/c^2)=R v=sqrt(R/(1-R/c^2)) where R was original right side, dont forget plus minus
The statement that would NOT be true would be option A. All isosceles triangles are also equilateral triangles. The rest of the statements would be TRUE.