In the diagram shown, CD = BC and BC = AB. Choose the reasons that best support the following reasoning used to show that x = 11. 1. CD = BC and BC = AB; therefore, CD = AB 2. CD = AB, AB = x, and CD = 11; therefore, 11 = x 3. 11 = x; therefore, x = 11 A. 1. substitution property 2. transitive property 3. symmetric property B. 1. transitive property 2. substitution property 3. symmetric property C. 1. symmetric property 2. substitution property 3. transitive property D. 1. transitive property 2. symmetric property 3. substitution property

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

a. is correct

it is definatly the 3rd one. very much looks like it, for a good chance, the third one would be best for you.

8(4)^8=72^feet to say that the total can conclude to 8(4) which as you know would mean 8 x 4. that equals 32w. 32^ could make a 72 answer as well. but your coefficent will remain w so your answer is 72w.

you!

if you need more with your math, visit khan academy where we give videos and tutorials   on everything math. we are efficent in our work.

you,

from,

the khan academy team