Gfind z such that 9.0% of the standard normal curve lies to the right of z. (round your answer to two decimal places.)

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

9/10 divide by -3/15 as a mixed number

Asap! i'm not good math and i'm lost.