<h2>quadratic equation</h2>
the solution of the quadratic equation is twofold, to find the solution, you can factor it first.
4x² + 8x + 3 = 0
4x² + 6x + 2x + 3 = 0
2x(2x + 3) + 1(2x + 3) = 0
(2x + 3) (2x+1) = 0
2x+3=0 or 2x+1=0
x=-3/2 x=-1/2
<em><u>You can try to prove that the x value above will produce 0</u></em>
• first x = -3/2
= 4(-3/2)² + 8(-3/2) + 3
= 9 - 12 + 3
= 0 (true ✔️)
• second x = -1/2
= 4(-1/2)² + 8(-1/2) + 3
= 1 - 4 + 3
= 0 (true ✔️)
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
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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.
Answer:
use code Lazarbeam
Step-by-step explanation:
In the item shop
Answer:
12hours
Step-by-step explanation:
24inch-2feet
24/2=12