A(-1,-6) B(3,-12) C(k,6) Find the value of k when Ab is perpendicular to AC(formula: gradient of AB×gradient of AC= -1)

1/2*qr*rs

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

answe: it will take 4.5 hours for naomi and clair to paint an equal number of square feet

hope i

-lavira : )