All Answers 355923 Answers

Since  WY = WY  and  WZ = WX  and angle(XWY) > angle(ZWY),

                                 the side opposite angle(XWY) > the side opposie angle(ZWY).

One day, Lee decides to write down the numbers    1.....999

How many times does 7 appear.

Lets see.

Units

Each decade 7 apears once.  100 decades so that is 100 times

Place value 10

Each century seven appears 10 times,  10 centuries so that is  100 sevens

Place value 100

Each millenium seven appears 100 times

So I get 300 times.  You got 297.  Who is wrong?

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If 7 appears 300 times it stands to reason that so do 1,2,3,4,5,6,8, and 9 do too.

How about 0

units   first decade not at all so that is 99 times

tens    first century not at all so that is 90 times

hundreds first milenium not at all so that is 0 times

So zero appears 189 times I think

300*9+189=2889 digits altogether.

so I get      300/2889   Same as EP.

I could easily have miscounted.

log(24, 6)  =  log₆24  =  log₆(6 · 4)  =  log₆6 + log₆4  =  1 + log₆4   

log(24, 4)  =  log₄24  =  log₄(4 · 6)  =  log₄4 + log₄6  =  1 + log₄6

[1 - log(24,6) ] · [1 - log(24, 4) ]  =  [ 1 - (1 + log₆4) ] · [ 1 - (1 + log₄6) ]

                                                   =  [ - log₆4 ] · [ - log₄6 ] 

                                                   =  log₆4 · log₄6

Changing these both into base 10:  =  [ log4 / log6 ] · [ log6 / log4 ]  =  1

Sorry, but this doesn't explain why

Not sure about that answer   

I count up in my head   300    7's    

   out of  2889 digits  (see previous answer)

300/2889 =100/963

How do you know it appears 297 times?   You should explain your answer.

In windows     hold down the alt key and type 0176 on the numeric pad         °    there it is    

or copy it from the character map    

 How did you get the frequency of 1/6pi ?

The rest is self explanatory and good.  Although I hope you did ityourself and that you understand.

'x' = price of game

3/4  x     = 12   multiply both sides by    4/3

x = 12 (4/3) = .......

in Web2 calculator ?

The digit 7 appears 297 times, so the probability is 297/2889 = 11/107.

1-9 =9

10-99 = 90 x 2

100-999 = 900 x 3        add the red to find total digits

r speed = x

g speed = x-15

there speed of separation is the sum of these      x   +   x -15

after 7.1 hrs         (rate   x   time  = distance)

7.1  ( x      +    x-15)   = 646.1      solve for 'x'  ryan speed   then    greg speed =   x - 15

What do you mean?      How do I put degrees       WHERE?

Start with sine function

sin x

amplitude

4 sin x

Midline y=1

4 sin x     +1

Period = 4        (usually sin period is 2pi    ....     2pi/y = 4       y = pi/2)

4 sin ( pi/2 * x)   +1

1   would just be the slope of the line of a 45 degree angle......

.8 is the slope of the line a little less than 45 degrees in this example

Looks good to me.   if   frequency is   1 / (6pi)     and NOT  1/6  * pi      (added)

The probability that neither land on orange is (1/2)*(7/8) = 7/16

Hence, the probability that at least one lands on orange is 1 - 7/16 = 9/16

5b : 7g     means there   are 5b  out of (5+7) = 12 students      5/12 are boys

5/12 * 372  = the number of boys

If all of the combo coins have to be different denominations, then only 4 are possible

Yes CPhill...

Plz come back!