What is the shaded region? 15m 20m

Y=2 sin 2× find ampitude, 4 period,phase shift​

One week a joggerran the following distances 15.3 km,18.75 km,19km,21.5km,25.375km and 30.25km.if his weekly averagebis 150km did he run less or more

The perimeter of a rectangle is 20cm. if 2cm is taken from the width, the decrease in the original will be equal to 3 times the original width. what are the dimensions? (i am only asking for the equation tho thank u)