2. Move vertex A to a different location. Which vertex angle remains unchanged?

-B
-C
-D

2-digit numbers less than 91 which are 1 less than a multiple of 10

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Is the power produced directly proportional to the wind speed, give reasons for your answer?