Geometry? ?

i will give brainliest : )

me find the length of ec below, and explain thoroughly. you can round your final answer if you wish.

additional info:

de is parallel to ac.

angle c is 60°.

angle a and angle bde are both right angles.

triangle abc is similar to triangle dbe.

the length of EC is 6ft

Step-by-step explanation:

Since angle BDE is a right angle, looking at right triangle DBE, we would determine the length of BE by applying trigonometric ratio. It is expressed as follows

Sin# = opposite/hypotenuse

# = 30 degrees

Opposite =3 ft

Hypotenuse = BE

Therefore,

Sin 30 = 3/BE

BESin30 = 3

BE = 3/Sin30 = 3/0.5= 6 ft

Also,

Total length of BC = BE + EC

Therefore

12 = 6 + EC

EC = 12 - 6 = 6ft

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}