Question

CHECK MY ANSWERS, WILL FAN AND MEDAL!!


http://prntscr.com/ccgokh

Answer 1

@jtug6

Answer 2

@AloneS

Answer 3

Q11 looks wrong
3x+5 - (2x-9)
means
3 x's take away 2 x's
plus
5 - (-9)

Answer 4

For Q12 they want you to do
e(y) = 0.012*0.79 y = 0.00948 y
but they want (why??) you to round the 0.00948 to the nearest thousandth first:
e(y)= 0.009y

now do
e(2000) = 0.009*2000

Answer 5

@phi for Q11 I changed it to x+14 and for q12 i multiplied the two and got 18

Answer 6

d = 0.012y and e = 0.79d

e = 0.79(0.012y) where y =2000

e = 0.79(0.012*2000)

Answer 7

phi is correct about rounding composite function e( d(y) ) = 0.79*0.012y to the function

e = 0.009y

now find e where y = 2000