Answer:
x = 2/3
Step-by-step explanation:
sin²30° + cos²30° + x.tan²60° = cot²30°
=> (1/2)² + (√3/2)² + x(√3)² = (√3)²
=> 1/4 + 3/4 + 3x = 3
=> 3x = 2
=> x = 2/3
The two parallel lines are FL and GK, on the right side of the shape. The other line is perpendicular to them.
145% of what number is 870 is 870/1.45=600
Answer=600
Multiply 500 times .75 and it equals 375, hope this helps!!