To find x we are gonna use the cosine formula.
Cos 0 = adj/hyp
0 represents theta
Cos 0 = adj/hyp
Cos 0 = 25/40
Convert 25/40 to decimal from
25/40 = 0.625
On a scientific calculator press the key “2nd F” or “Shift” then “cos”(which would give cos inverse) then type 0.625 equal.
Cos-1 0 0.625
= 51.31 degrees
x is therefore 51.3 degrees to the nearest tenth
12,750 tickets were sold
0.85 x 15,000
Im pretty sure it would be a positive 6,2
To construct a perpendicular bisector of a line secment AB. Place a compass at the center of line AB and make an arc at both ends of line AB. Place the compass at each of the arcs you made at both ends of AB and make a mark above and below line AB. Join the points of intersection of both arcs above and both arcs below line AB. That is the perpendicular bisector of line AB.