Mr. Allen has 345 CDs on 5 shelves in his house. He has the same number of CDs on each shelfTo find the number of CDs on each shelf, he divided 345 by 5. How many tens did he regroup as ones? How many CDs are on each shelf ?

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,

m∠a is 90°

m∠b is 40°

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !