a tower is 50m high its shadow is x meters shorter when the suns altitude is 45 degree than when it is 30 degree, find x correct to the nearest cm

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

In the picture below, line pq is parallel to line rs, and the lines are cut by a transversal, line tu. the transversal is not perpendicular to the parallel lines. note: figure is not drawn to scale. which of the following are congruent angles?

If (-3, y) lies on the graph of y = 3^x, then y =