A rotation will interchange the (x,y) coordinates to (y, -x)
So the 3 points are transformed from
D(3,2) to D'(2,-3)
E(4,5) to E'(5,-4)
F(2,3) to F'(3,-2)
Now if you reflect these across the x axis only the y value is affected.
D'(2,-3) to D"(2,3)
E'(5,-4) to E"(5,4)
F'(3,-2) to F"(3,2)
Which is none of your answers. That's one of the reasons it has taken me so long to answer. I'm going to have someone I really trust check what I've done, but I think the question is incorrect. If I am wrong, he has the power to allow me to edit.
Calculating percentage increase and decrease.
Step1.
Work out the difference between the two numbers being compared.
Step2.
Divide the increase by the original number and multiply the answer by 100.
Step3.
In summary or formula: percentage increase = increase = increase divided by original number.
Hope this helps you! Have a good day/ evening!
Let's start calculating the value of √(27):
√(27) = √(9*3) = √(9)*√(3) = 3√(3) ≈ 5.196152423
So:
5.196152423 > 5.0
and
5.196152423 < 5.2
Therefore:
5.0 < √(27) < 5.2