In order to find the length of ?? (let's call this distance x), let's first find the value of Angle A.
The cosin of Angle A is Adjacent / Hypotenuse, or 40 / 50. Using this Info:
cos (A) = 40/50
cos (A) = .8
With this crucial piece of info, we can find the Total length of A-D (Point D being the point above C), by finding its relation to side AC (length of 50 + 70 =120 ft)
Cos (A) = adjacent / hypotenuse
Cos (A) = AD / (120) We know that cos (A) = .8
.8 = AD / (120) Multiply both sides by 120
96 = AD
We're almost there! Remember that we're trying the find x (?? in the diagram).
x + 40 = 96
x = 56 ft
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Answer: 
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Given: 
Find: 
Solution: In order to find the distance we need to use the distance formula, plug in the values, and simplify the expression.
<u>Plug in the values</u>
<u>Simplify the expression</u>
After simplifying the expression we were able to determine that the distance between the two points is 10.198 units.
The answer is m=1.19 hope it helps
-108x(x-3) I’m pretty sure
Answer:
There are 88 adults and 132 children
Step-by-step explanation: