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willisanthony7815
16.07.2020 •
Mathematics
Figure ABCD is a rectangle find the value of x
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Ответ:
8
Step-by-step explanation:
BD is 32 units.
BE is half of BD
3x - 8 = 32/2
3x - 8 = 16
3x = 16 + 8
3x = 24
3/3x = 24/3
x = 8
Ответ:
Solution,
Diagonals of rectangle bisects each other.so,
2 BE = BD
2( 3x - 8 ) = 32
6x - 16 = 32
Add 16 on both sides
6x - 16 + 16 = 32 + 16
Simplify
6x = 48
divide both sides of equation by 6
6x/6 = 48/6
calculate
X = 8
Hope this helps...
Good luck on your assignment..
Ответ:
It formed a triangle:
Where:
side 1 = 560 ft
side 2 = 350 ft
side 3 = missing info. the distance.
angle given opposite the missing side = 160° - 75° = 85°
We will use the law of cosine to solve for the distance.
c² = a² + b² - 2ab cos(C)
c² = (560ft)² + (350ft)² - 2(560ft)(350ft) cos(85°)
c² = 313,600ft² + 122,500ft² - 392,000ft² (0.087)
c² = 436,100ft² - 34,165ft²
c² = 401,935 ft²
√c² = √401,935ft²
c = 633.98 ft the last option.