Determine las fuerzas de tensión que se necesitan para mantener en equilibrio un semáforo que tiene un masa de 12Kg como se muestra en la figura.

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Aballet student who learns with the of his instructor is demonstrating learning.

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g