The height of the balloon above the ground is about 7.07 feet.
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What is trigonometric ratio</h3>
Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.
Let h represent the height of the balloon from the ground, hence:
sin(45) = h/10
h = 7.07 feet
The height of the balloon above the ground is about 7.07 feet.
Find out more on trigonometric ratio at: brainly.com/question/1201366
It is about <span>1.37638192.
The cotangent is just one divided by the tangent. So, find the tangent of pi/5 = </span><span>0.726542528, then divide 1 by that number.</span>
699 is closet because as you subtract every number from 750, the smallest answer given is the closest to the number you started with.