Square PAST has vertex A at (- 4, 2) . PAST is reflected about the x - axis . It is then reflected again over the line y = - x . Which of the following is the coordinate of vertex A ^ n ?
A.(4,2)
B.(-4,2)
C.(2,4)
D.(-2,-4)

C (2,4)

Step-by-step explanation:

Reflection about x-axis: (-4,-2)

Reflection in y = -x : (2,4)

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!