See picture for a reply to your question.
Put parentheses around the '6 + 12 ÷ 6' and another parentheses around the '6 + 12':-
8 x 5 - ((6 + 12) ÷ 6)
= 40 - (18 ÷ 6)
= 40 - 3
= 37
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All you have to do to acquire the equation is to substitute the variables to the formula for A and simplify. Since A = 1/2*b*h and h = bsin(C), then A can be in terms of one variable only, which is b.
A = 1/2*b*bsin(c)
A = 1/2*b^2*sin(C)
FOR Y
opposite angles - equal
angles in a quadrilateral are 360 degrees
68 + 68 = 136
360 - 136 = 224
224/2 = 112 degrees
angles on a straight line = 180 degrees
180 - 112 = 68
Y = 68
FOR X
angles on a straight line are 180 degrees
180 - 68 = 112 degrees
X=112 degrees
Answer:
Horizontal distance = 1218.41 ft
Step-by-step explanation:
Given data:
Slope distance = 1223.88 ft
Zenith angle is = 95°25'14"
converting zenith angle into degree
Zenith angle is
94.421°
Horizontal distance
putting all value to get horizontal distance value
Horizontal distance 
Horizontal distance = 1218.41 ft