Una lancha cuya velocidad es de 15 km/h en aguas quietos va 30 km río abajo y regresa en un total de 4 horas y 30 minutos. La velocidad de la corriente es

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

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