Tina practiced piano for 15 hours last month and 45 hours this month. use multiplication to write a statement comparing the hours tina practiced during the two months

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.

What is the value for this expression? 2e-5