Sam and Krista work at the same store. Over the past 4 days, Sam worked 22 hours. During the same time period, Krista worked 25% more hours than sam, plus an additional 2.5 hours. How many hours did Krista work ?

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

El piloto de un avión observa la pista de aterrizaje del aeropuerto de chiclayo con un ángulo de depresión de 30°; avanza 600 metros y el nuevo ángulo con qie se observa la pisga de aterrizaje es de 60°. ? a qué altura se encuentra volando el avión?

The main cable of a suspension bridge is modeled by the equation y= 0.0048(x - 50)2 + 6. at what horizontal distances from the left support is the cable 10 ft above the roadway?