I need help with this question please  
Supposed you know that Ls and LY are complementary, and that mLS=3(mLY)-90°

The value of mLY is

Someone help me with this question!!

9514 1404 393

  ∠Y = 45°

Step-by-step explanation:

The sum of complementary angles is 90°.

  ∠Y + ∠S = 90°

  ∠Y + (3(∠y) -90°) = 90°

  4∠Y = 180° . . . . . . . . . . . . add 90°, collect terms

  ∠Y = 45° . . . . . . . . . divide by 4

The measure of angle Y is 45°.

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.