B. Trigonometric and Hyperbolic Function of Complex Number. Evaluate the following. Express your answer in a +jb. 9. cos (j4) 13. cosh (5 + j12) 14. sinh (2+ j2) 10. sin(j6) 11. cos(4 + j4) 12. sin(3 - j4) 15. tan (-3+ j3)

I need help on an algebra problem from my homework.

Lin bought 4 bags of apples..Each bag had the same number of apples.  After eating  1 apple from each bag, she has 28 apples.   For each of the following problems, create a tape diagram, define the variable, write the corresponding equation, solve and write a sentence.   Btw this math is not advancd there was no normal math on tape diagrams

their reasoning that a 16-inch pizza should serve 8. Kinsey has an idea for determining how people a 16-inch pizza will serve. What math- ematical reasoning might Kinsey be thinking of, many bin and how many people should a 16-inch-diameter pizza serve if a 12-inch-diameter pizza serves 6? (See Figure 12.84 ) Exnlain your answers.