In △CDE , DE=15 , CE=7 , and m∠E=38∘ .

What is the length of ?

Enter your answer, rounded to the nearest hundredth, in the box.

Step-by-step explanation:

thanks for the question!!

I hope it helps you

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

since no one answered yet i will give it a shot, not completely sure tho.

i think it should be y=cos(x+2pi), (third answer, answer c)

good luck.