ElectricPavlov

The president wants people to believe that almonds are good for one's teeth so that they buy more almonds.

19.3 - (-16.9) = 19.3 + 16.9 = 36.2

8000 is one standard deviation below the mean of 10400                        z-score = .1587

9000 is  1400/2400 =.58 standard deviations below the mean              z-score ~~ .2810

.2810 - .1587 = .1223          12 % of households are between 8000 and 9000 kwh consumption

I'll leave the graphing to you.....

12/60 x 100%=20%

Well....just re-arrange it to 'standard form'

y> x-7

y -x > -7     or   -x + y > -7

Here is a graph from desmos

Here is a pic:

5x+8y= -9     re-arrange in to   y= mx + b form

8y = -5x - 9

y = -5/8 x - 9/8       shows m₁  (the slope) = =5/8

Remember how to find pepindicular slope?

- 1 / m₁   will be perpindicular      -1 / (-5/8)  = 8/5

so the line we are looking for is   y = 8/5 x + b      Now sub in the point given (10,10) to find the value of b

                                                   10 = 8/5 (10) + b      b = -6

your line is       y = 8/5 x - 6        m+ b = 8/5-6 = - 4 2/5

Just by looking at it , I would say  y > x- 7

#3    I count  24 ways if the domino halves are indistiguishable