Answer:
x = 18.5
Step-by-step explanation:
tangent is opposite over adjacent
tan 51 = x/15
solve for x
be sure your calculator is in Degree mode.
x = tan 51 * 15
x ≈ 18.52
Using the tangent ratio in the right triangle
tan51° = =
Multiply both sides by 15
15 × tan51° = x, thus
x ≈ 18.52 ( to 2 dec. places )
They have 2 angle measures in common, so that means the third measure has to be the same.
hope this helps
x = -2
Steps:
10x-10(-4)=10
15x+10*4=10
15x+40=10
15x+40-40=10-40
15x=-30
