ElectricPavlov

Daniel has to cover 1/3 mile at the difference in speeds (5 m/hr) to catch up

1/3 m / 5 m/hr  = 1/15 hr = 4 minutes

Rectangular prism base =    4 x 4 x 9   m³

  triangular prism top  =   1/2 b * h   * l   =     1/2 *4 * 3 * 9   m³

    Compute and add reds together for final answer.... 

Welll        y/z  * z/w   = y/w = 2/3 * 5/8 =   10/24 = y/w = 40/96

  and     x/y * y/z = x/z = 3/4 * 2/3 = 6/12

        then x/z * z/w = x/w   =    6/12 * 5/8 = 30/96 = x/w  

 and  w/w = 1 = 96/96

sooooo    (  x+ y+w)  / w   =   ( 40 + 30 + 96) / 96 = ........

Post    4 x 60 = 240 in^2

 PLUS sign    8x8   +  1/2 8 * 5 = 84

= 324 in ²

S₁     3 7 11 15 19 23 27 31 35 39 43 47 51

S₂     1 6 11 16 21 26      31      36 41 46 51

makes a new series     11   31   51      a = 11   d = 20

S = (n/2) × (2a + (n−1)d)

 S₂₀ = 20/2 ( 2(11)+19(20))

        = 10 (22+ 380) = 10(402) = 4020

From 2 minutes to 6 minutes  (4 minutes) is an increase of 2 dollars charge

   4 minutes costs 2 dollars   or 50 cents per hour

at 2 minutes the rental charge would be 1 dollar meanning it costs 9 initially

10.25   - 9 initial leaves   1.25      at 50 cents a minute this woud get you   2 1/2 minutes      (what a bargain! )

Northwest is 315^o

^{Start at oigin 0,0    find components of north and west for each}

A    2 hours          2 * 10.5 * sin 315  =14.85  W

                             2 * 10.5 * cos 315 = 14.85 N

B  2 hours             28 sin 280 = 27.57 W

                              28 cos 280 = 4.86 N     

Ship A is   |14.85 - 4.86| = 9.99   N-S   km

  and          |14.85 - 27.57|   = 12.72   W-E   km       of ship B         Pythag theorem    sqrt (12.72^2 + 9.99^2) = 16.17 km  apart

(I hope I did that correctly! )

5 4 3

5 4 2

5 3 3

5 4 4  

5 5 4

5 5 3

5 5 2

5 5 1 

5 5 5        nine?

I think x y and z can each be  1  or -1  

1 + 1 +1 = 3

-1 + 1 +1  =1

-1 -1 + 1  = -1

-1 -1 -1   = -3         4 values

(x-0)(x-1)=0          roots             = 0  and +1

x^2 -x  + 0              coefficients = -1   and  0