Jairo spent $40.18 on 3 music cds. each cd cost the same amount. the sales tax was $2.33. jairo also used a coupon for $1.00 off his purchase. how much did each cd cost

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,

by definition, an arc subtended by a central angle of some given measure has the same measure. so .