CPhill

480 x .621 = about 300 miles

So   D / R = T   .....

The number of old license plates possible in the old system.......assuming digit repeats, is given by

26 x 10000  =  260,000

The number of license plates possible in the new system......assuming letter and digit repeats... is given by

(26)^3 * 1000 = 17,576, 000

So

260,000 / 17,576,000 = 0.0148     {rounding this to the nearest tenth  = 0 !!! }

Yes....but it's not a "real" number

The square root of  -1 is defined as " i "......where i  is an "imaginary" number

So, for example

√(-4) =

√(-1 * 4)  =

√(-1) *  √4  =

i * 2     which is usually written as 

2i

40% of 30 = 12

All the rest = 120

B is the correct answer

LOL!!!.....this is probably more true than we care to admit.....

1/3 (x- 13) > 14    mutiply both sides by 3

(x - 13) > 42      add13 to both sides

x >  55

I think you want to know the angle when the tanget  = 7//11.  For that, we can use the tangent inverse.

tan-1 (7/11) = about 32.47°    

This could also be a 3rd quadrant angle = 180 + 32.47 = 212.47°

0=10x^2-15x

we don't need the quad formula, here....just factor

0 = 5x(2x -3)     and setting both factors to 0, we have

5x = 0                               and            2x - 3 = 0

divide both sides by 5                      add 3 to both sides 

x = 0                                                   2x = 3

                                                         divide both sides by 2

                                                             x = 3/2

So...the solutions are......x = 0   and x = 3/2