CPhill

Thanks.......I knew it probably wasn't correct......d****t!!!!

The   "Hop-A-Long Cassidy" model, no doubt    ......

It's not nice to threaten the person who bakes your cakes, Melody......the next one my have some "extra" ingredients........

Mmmm.....Badinage's answer seems logical, too.....help, Melody  !!!!!

Mellie....I'm assuming that the probability is (3/4) each day.....

So   (3/4) ^3 = 27/64

So.....the probability that it will not snow at all = [ 1 - 27/64 ]  =[ 64/64  - 27/64 ] = 37/64

I think your second answer looks good......!!!!

The probability that at least one woman is selected = 1 - P(no woman is selected)

So, we can form  C(10,3) possible committees  =  120 possible committees

And the number of ones that just include men = C(7,3)  = 35

So....the probability that no woman is selected = 35/120 = 7/24

And this means that the probability that at least one woman is selected = [1 - 7/24 ] = [24/24  - 7/24]  = 17/24

Don't let her kid you, Mellie......Melody knows EXACTLY where that knife is.......she just doesn't want to share any more cake...!!!!!

There are 25 possible draws...the (1,1) (2,2) (3,3) (4,4) and (5,5) "draws" are indistinguishable as to order, but the other 10 listed can be "reversed"  giving.... 5 + 2(10)  = 25 total possible draws

(1,1)  (1,2) (1,3) (1,4) (1,5)

(2,2) (2,3) (2,4)  (2,5)

(3,3) (3,4) (3,5)

(4,4) (4,5)

(5,5)

Notice that only 5 out of 25 are even and greater than 10.....so the probabilty is 5/25   = 1/5

The derivative of a^x =   ln(a) * a^x     

So, the derivative of (.931)^x  =   ln(.931) * (.931)^x

You can evaluate ln(.931) on your calculator......then.....multiply that times 6.687  and then "tack" the   "(.931)^x  "  part on at the end.......

 y=x^2-6x+7      y=2x        setting the "y's" equal, we have

2x = x^2 - 6x + 7      subtract 2x from both sides

0 = x^2  - 8x + 7      factor

(x - 7) (x -1) = 0      and setting both factors to 0, we have that x = 7 and x = 1