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Sunny_sXe [5.5K]
3 years ago
7

• Trey attended a New Year's Eve event and watched a ball drop at midnight. Prior

Mathematics
1 answer:
jekas [21]3 years ago
7 0

Answer:

x=60.9°

Step-by-step explanation:

Given that the height of ball from the ground is 150ft

The base of the pole with the ball is 80 ft from where Trey is standing

Trey's horizontal line of sight is 6 feet above ground, then;

The height of ball from Trey's horizontal line of sight is;

150ft-6ft = 144ft

To find the angle x, assume a triangle with a base of 80 ft , a height of 144 ft and a slant height that represent the line of sight at an angle x

To get angle x , you apply the tangent of an angle formula where;

tan Ф°= length of opposite site of the angle/length of the adjacent side of the angle

tan x°= 144/80

tan x°=  1.8

x°= tan⁻(1.8)

x°=60.9°

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2 years ago
A number, X, rounded to 1 decimal place is 3,7<br> Write down the error interval for x,
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Answer:

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Step-by-step explanation:

The number after rounding off is obtained as:

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We know that any of the number below on rounding off the number to the first decimal place will result in 3.7:

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( Because if we have to round off a number present in decimals to n place then if  there is a  number greater than or equal to 5 at n+1 place then it will result to the one higher digit  at nth place on rounding off and won't change the digit if it less than 5 )

        Hence, the error interval is:

            [3.65,3.74]

6 0
2 years ago
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