A bag contains 7 white balls and 5
black balls In how many ways 4
balls can be drawn form the bag if 2
must be whit

Question

A bag contains 7 white balls and 5 black balls In how many ways 4 balls can be drawn form the bag if 2 must be white and 2 must be black​

Gabriella · Answer

Answer:   no of white balls = 7   no. of black balls = 5   therefore no. of total balls = 12   therefore probability of getting two black balls and two white balls are   = no. of two black and two white balls at same time /12  = 1+1/12  = 2/12  =1/6    HOPE IT WILL HELP YOU

Cora · Answer

Step-by-step explanation:   ➽ ᴇᴄᴏsʏsᴛᴇᴍ ɪs ᴛʜᴀᴛ ɪᴛ ɪs ᴀ ᴄᴏᴍᴍᴜɴɪᴛʏ ᴏʀ ɢʀᴏᴜᴘ ᴏғ ʟɪᴠɪɴɢ ᴏʀɢᴀɴɪsᴍs ᴛʜᴀᴛ ʟɪᴠᴇ ɪɴ ᴀɴᴅ ɪɴᴛᴇʀᴀᴄᴛ ᴡɪᴛʜ ᴇᴀᴄʜ ᴏᴛʜᴇʀ ɪɴ ᴀ sᴘᴇᴄɪғɪᴄ ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ.

Quinn

write the symbolic form of two perpendicular lines AB and CD
fast

The general solution of p2 – 1 = 0 is
y2 – 2yc – x2 + 2 = 0
y? – x2 = 42
y2 – 2yc + x2 + 2 = 0
32
2xy + x

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A bag contains 7 white balls and 5black balls In how many ways 4balls can be drawn form the bag if 2must be whit