10 raise to power2 - 11 raise to power 2 + 4raise to power2

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)