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a ( x^2 -x-6)         no matter what value 'a' is, the zeroes are still going to be 3   and -2

                                  so we know one leg of the triangle is +3

triangle area = 1/2 b * h

                          1/2  3 * h = 12

                              shows the other leg (the y-axis intercept) needs ot be | 8 |

 |a (-6) | = 8

   a = - 1 1/3   or    + 1 1/3          

so

a  = + 1 1/3    ( since the parabola opens upward)

[DEF]/[ABC] = 5/12

(a,b,c) = (1,-3,7).

This is easy if you use recursion.

Find slope     (rise/run) = 4 / 1 = 4

point slope form      y -9 = 4 ( x-4)   re-arrange

                                y-9 = 4x - 16

                                         4x -y = 7

The equation is 7x + 13y = 80.

There are a total of 52 points.

By the Euclidean Algorithm, the maximum value is 10.

1/21 =1 / [F + 9D],   

1/-10=1 /[F + 20D], solve for F, 

Use substitution to get:

F ==510 / 11  - this is the 1st term

D== - 31 / 11  - this is the common difference

210th term   ==[510 /11]  + [- 31/11 * 209]

                     ==[510 /11]  + [- 6479 / 11]

                     == - 5969 / 11  -  this is the 210th term

243  (1/3)^5   =  243  /  243  =   $1    at  the  end of  the  5th day

The whole thing doesn't make sense.

Missing  some info......

See  here  :

https://web2.0calc.com/questions/i-pick-two-whole-numbers-x-and-y_1

Wait nevermind I solved it :/

its just 15 - 3 = 12

15 x 3 = 45

(5/6)x  + 1  = 3/x            multiply through  by x

(5/6)x^2  + x  =  3           rearrange as

(5/6)x^2 + x  -  3   =   0 

Using  the   Q Formula

                    -1  +  sqrt  [ 1  - 4* -3 * 5/6 ]

x  =             _______________________  

                           2 (5/6)

x =      -1  +  sqrt  [ 11]

         _______________

                  5/3

              -3   + 3sqrt (11)

x  =     _______________

                       5

acd / b    =   (-3) (11) (5)  / 3   =     -55

TRY number THREE:

1200 possibles     1 / 1200 chance to match that exactly

1 / 10 chance to match only superball     10 out of 1200

1 / 120 chance to match all 3 whites       10 out of 1200            

3 ways to match 2 out of three whites      3 out of 1200              you could hit the superball too     ( + 3/1200* 1/10 ?)

1 + 10 + 10 + 3   / 1200 =    24/1200      1/50 chance of a wining ticket       so far....but I do not know how to compensate for the red note above

C(5,2)  *  6  * 4  *  5    =

10  *  120  =

1200  possible committees

Angles  of Intersecting Chords Theorem  :

Angle  AEC  =  (1/2)( arc AC  + arc DB)  =  (1/2) (84 + 20)  =  (1/2) ( 104)  = 52°

And angle   AED  is supplemental  to  angle  AEC  =  180 -  52   =   128°

Two  tangents drawn from  the same external point have  equal lengths

So

AB  = AC   =  10

3(10/12)  + 9(2/12)  =    30/12  +  18/12 =  48/12  =   4

The expected value is 48/11.

The expected value is 48/11.

The probability is pi/6.