Which equation is the inverse of 2(x – 2)2 = 8(7 + y)? –2(x – 2)2 = –8(7 + y) y = one-fourth x squared minus x minus 6 y = negative 2 plus-or-minus startroot 28 + 4 x endroot y = 2 plus-or-minus startroot 28 + 4 x endroot

Step-by-step explanation:

we have

step 1

Exchange the variables x for y and y for x

step 2

Isolate the variable y

Divide by 2 both sides

square root both sides

Adds 2 both sides

Apply distributive property right side

---> inverse function

y = 2 plus-or-minus StartRoot 28 + 4 x EndRoot

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

step-by-step explanation: