B and C are correct because you do basic PEMDAS and get 58 for both those expressions. If this is right could you possibly give me brainliest? Hope this helped.
5/6 would be the best answer beside the other 2 choices that you have
Put -4 in place of x
-4 to the second power is 16 so it would be 16-(-12)= 28
The correct answers are A, D, E
Cosα=x/L
L=x/cosα, we are told that the ladder base is 48 ft from the base of the wall and α=39° so:
L=48/cos39 ft
L≈61.76 ft (to nearest hundredth of a foot)
