Of the 9-letter passwords formed by rearranging the letters bbccc (4 a’s, 2 b’s, and 3 c’s), i select one at random. determine the following probabilities. (a) prob (my word is a palindrome and has no two c’s next to each other). 4 points (b) prob (my word has two c’s next to each other and the other c not next to them). (c) prob (my word has the three c’s next to each other and the b’s apart from each other).

dont understand

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.