hey, can anyone please verify to me if this is right or not, and if its not right, then could you please help me with getting the right answers? (please show work on how to get the answers please, thank you).

4/52*20/51

9/38

Step-by-step explanation:

For the first one

4/52*20/51

4/52 - 4 kings out of 52 cards and 5*4=20 numbered cards (1, 3, 5, 7, 9) out of 51 cards (one taken at first step)

For the second one

10/20*9/19= 90/380=9/38

10 green out of 20 marbles, then 9 green out of 19 marbles (one green taken at first step)

good luck!

cutie~

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: