Answer: -1 ± <em>i</em>√35
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6
Step-by-step explanation:
From the quadratic equation,
X = -b ±√b² - 4ac
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2a
From the given equation, -3x² - x - 3 = 0
where a = -3, b = -1, c = -3
Now substitute for the values in the formula above
x = -(-1) ± √(-1)² - 4(-3)(-3)
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2(-3)
x = 1 ± √ 1 - 36
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-6
x = 1 ± √ -35
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-6
x = -1 ± <em>i√35 this is because it has a negative root.</em>
<em> ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻</em>
<em> 6</em>
<em> The answer is b</em>
The smallest y-value is -3 when x=0
[-3,∞)
Answer:
Step-by-step explanation:
area=4×22/7×14²=4×22×28=2464 units²
Answer:
84.26° in the south west direction.
Step-by-step explanation:
I've attached an image showing the triangle formed by the motion of the plane and the wind.
I've depicted the plane being pushed west and the wind moving south west.
Thus, the direction of motion of the plane will be angle θ.
Using trigonometric ratios;
25/250 = cos θ
cos θ = 0.1
θ = cos^(-1) 0.1
θ = 84.26°
Thus will be in the south west direction.
