So the hypotenuse is the ladder's length, which is 6m, and the base of the 'triangle' is 1.5m. Therefore, you do 6^2 - 1.5^2 = 36 - 2.25 = 33.75. Then, you just square root it to get 5.80948m. Hope this helps!
The answer to the first B one is horizontal translation 1 to the right because the -1 is inside the quantity.
2nd g(x)=3x^2+8
-1/3b = 9
b = 9 * -3
b = -27
Two negatives make a positive so, -13 - (-49) equals -13 + 49, or 49-13, they are all the same thing, all equal to 36.
