Tres personas llegan a un hotel y pagan 18 € por una habitación para los tres. Más tarde la directora da cuenta que les ha cobrado de más y dice al chico de los encargos que les devuelva 3 €. Durante el camino el chico decide concederse una propina y se queda 1,20 € y vuelve 1,80 € a los clientes. Así, cada cliente ha pagado sólo 5,20 € por habitación y el chico de los recados se ha quedado 1,20 €. Esto suma un total de 16,2 € + 1,20 € = 17,4 €. ¿Qué ha pasado con los 60 céntimos que faltan?

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

the answer is 62.8 cubic units

step-by-step explanation:

hihi so drawing these 2 triangles is fairly simple. all that's left is finding the height of each one. luckily, we have a side length and an angle, so there is a trig function we can use to solve for the height. the easiest one to use would be tangent, since we have 2/3 things needed to find and the third needed is what we are solving for. tan(73°) * 30 ~= 98.13 and tan(73°) * 35 ~= 114.45