Answer:
4
Step-by-step explanation:
because i know how to do it
I think it’s 21:9 I don’t know but I think that would be the answer
Answer:
x = 5
Step-by-step explanation:
![{x}^{2} - 10x + 25 = 0 \\ {x}^{2} - 5x - 5x + 25 = 0 \\ x(x - 5) - 5(x - 5) = 0 \\ (x - 5)(x - 5) = 0 \\ ( x- 5) = 0 \: or \: (x - 5) = 0 \\ x = 5 \: or \: x = 5 \\ x = 5](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-%2010x%20%2B%2025%20%3D%200%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20-%205x%20-%205x%20%2B%2025%20%3D%200%20%5C%5C%20x%28x%20%20-%20%205%29%20-%205%28x%20-%205%29%20%3D%200%20%5C%5C%20%28x%20-%205%29%28x%20-%205%29%20%3D%200%20%5C%5C%20%28%20x-%205%29%20%3D%200%20%5C%3A%20or%20%5C%3A%20%28x%20-%205%29%20%3D%200%20%5C%5C%20x%20%3D%205%20%5C%3A%20or%20%5C%3A%20x%20%3D%205%20%5C%5C%20x%20%3D%205)
Answer:
h = 8 feet
Step-by-step explanation:
see attached
Using the law of cosines and sines, the measure of angle B is: 38.4°.
<h3>What is the Law of Cosines and Sines?</h3>
Law of cosines is: c = √[a² + b² ﹣ 2ab(cos C)]
Law of sines is: sin A/a = sin B/b = sin C/c
Use the law of cosines to find c:
c = √[12² + 18² ﹣ 2(12)(18)(cos 117)]
c ≈ 25.8
Use the law of sines to find angle B:
sin B/b = sin C/c
sin B/18 = sin 117/25.8
sin B = (sin 117 × 18)/25.8
sin B = 0.6216
B = sin^(-1)(0.6216)
B = 38.4°
Learn more about the law of cosines on:
brainly.com/question/23720007
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