What are the zeroes of the polynomial x(x²+4x-12)
1 answer:
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<h2>The value of h = 0, ± 
</h2>
Step-by-step explanation:
We have,
To find, the value of h = ?
∴
⇒ + (0)
- 12
+ (0)
+ (0)h = 0
⇒ + 0 - 12
+ 0 + 0 = 0
⇒ - 12
= 0
Taking 6 as common, we get
= 0
⇒6 = 0 or,
- 2 = 0
⇒ 6 = 0 ⇒ h = 0
⇒ = 2
⇒ h = ±
Hence, the value of h = 0, ±
9514 1404 393
Answer:
- b = 757.7 m
- A = 17.2°
- C = 14.3°
Step-by-step explanation:
From the law of cosines, you can find the length of side b to be ...
b = √(a² +c² -2ac·cos(B))
b = √(184041 +128164 -307164cos(148.5°)) ≈ √574105.36
b ≈ 757.7
__
From the law of sines, you can find the measure of angle C to be ...
C = arcsin(c/b·sin(B))
C ≈ arcsin(358/757.7·sin(148.5°)) ≈ arcsin(0.246872)
C ≈ 14.3°
A = 180° -148.5° -14.3°
A = 17.2°
_____
Some graphing calculators have built-in triangle-solving functions. Apps are available for the purpose for phone or tablet. The screenshot shows a web site that does a nice job of solving the triangle.
