A man stands on the shore 85cm from a light house. When he looks at the top of the lighthouse, the angle of elevation created is 44. Calculate how tall the light house is and explain how you found you answer.

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'