Supondo que a distancia aproximada entre brasil e russia seja de 15.000km e que as ondas eletromagneticas viajem pelo ar com uma velocidade constante de 3x10 à 8 m/s qual o numero de vezes que a distancia entre brasil e russia poderiam ter sido percorrida pelas ondas de radio durante o atraso de 3 segundos das ondas televisivas?

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

i believe that the slope of the line is -5

step-by-step explanation:

the answer is $42.96

step-by-step explanation: