Is the work shown correct? explain your answer.

(11+-10i)
=11+2i-3-10i
=(11-3)+(2i-10i)
=8-8i

What properties allow transformation to be used as a problem solving tool

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.