U = 3 hours since 3 is the least amount of time it would take underwater. Hope this helped
A number added to one or more other numbers to form a sum
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The values for x and y are respectively given as
- x = 50
- y= 90
This is further explained below.
<h3>What is the values for x and y ?</h3>Generally, the equation for secent is mathematically given as
Therefore
80 = 130-x
x = 50
b) To Solve for y Now we find a measure of arc CD
ArcCD = 360-130-50
ArcCD = 180
In conclusion,(1/2) of the arc measure is equal to the angle that is on and inside a circle.
y = 180/2
y= 90
Read more about circle
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