ElectricPavlov

Probability of rolling a '1'     is   1   out of  ( 1+2+3+4+5+6)  = 1 out of 21

    probability of rolling TWO '1s'  is    1/21 * 1/21 = 1/441 

Yes......but you will not be able to see THIS response from me !

~ EP 

Yah....mine are all blocked too......

~EP

I get sum = 409158      meaning 8 is the units digit

Start with the LEFT side 

      Using the definition of logs :   (  3^1/2  )ⁿ  = 3⁴      shows  n = 8       ( or you can just use a calculator to find the L side = 8) 

                   so the left side = 8 

8 = log_x 4

since y = log₂ x    then  2^y = x     ( using definition of logs) 

then     8 = log _2^y  4   

       ( 2^y )⁸   = 4                   (using definition of logs again) 

           2^8y = 2²                        (equate the exponents) 

               8y = 2 

               y = 1/4 

Not quite arunganta30

If Brother has 20      and you have 15 ....   

             when you give him 5      he has 25   and you have 10 ....not the same amount......do you see? 

This is a right triangle 

     one leg ( the OPPOSITE leg)  is 48.34 ft      the other leg (the ADJACENT leg)  is 53.15 ft 

       REMEMBER for RIGHT triangles   tan Φ = opposite leg / adjacent leg 

           so for this right triangle   tan Φ = 48.34 / 53.15

                   then  Φ = arctan ( 48.34/53.15) = 42.29°

y = your money

b = brother money

y-5 = b+5     <======given

2(b-25) = y+25     <======given                    Sollve the sytem of equations....looking for b

Re-arange the first equation 

    y = b+10       sub this into the second equation.....

    2(b-25) = ( b+10) + 25 

     b = 10 + 25 + 50 = 85 dollars                      ( and you have 95) 

One   12 ab

Two     7

Three   -y 

THREE  terms 

Cutting the wire in half will increase the amps by a factor of 2   to   400 ma         (because the resistiance is halved)

  increasing the volatage ACROSS the wire will increase the amps by  400 / 60    

     400 / 60  *  400 ma = 2666.7 mAmps 

(NOTE : Voltage is apllied ACROSS a component ....not THROUGH it) 

    (current goes THROUGH a componet)