La pantalla de una lámpara tiene forma de cono. Su estructura de alambre consta de un anillo circular y cuatro piezas rectas de igual longitud que van unidas al anillo en los puntos A, B, C y D. El anillo tiene su centro en el punto O y un radio de 20 centímetros. Las piezas rectas se encuentran en el punto V, que está sobre la vertical del punto O, y el ángulo que forman con la base de la pantalla de la lámpara es igual a 60°.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

the line of

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction