Ieda and thanh both offer piano lessons. ieda charges an initial fee of $8.50 and an hourly rate of $11.00. thanh charges an initial fee of $10.00 and an hour rate of $10.50. at how many hours of instruction will the price for each instructor be the same?

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation: