3 years ago

What is the slope of the line shown below?

Mathematics

1 answer:

erik [133]3 years ago

7 0

Answer:

C) 2

Step-by-step explanation:

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2 years ago

Solve the following inequality. Express the exact answer in interval notation, restricting your attention to 0 ≤ x ≤ 2π.

kondor19780726 [428]

$sec^2(x) \leq 4
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\\\\ \frac{1}{cos^2(x)}-4\leq 0
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\\\\ 1-4cos^2(x)\leq 0*cos^2(x)
\\\\1-4cos^2(x) \leq 0
\\\\-4cos^2(x) \leq -1
\\\\cos^2(x) \leq \frac{-1}{-4} 
 \\ \\ cos^2(x)\geq \frac{1}{4} 
 \\ \\ \sqrt{cos^2(x)} \geq \sqrt{ \frac{1}{4}} 
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x\geq60
\\-------------
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60 ≤ x ≤ 300

or

$60* \frac{ \pi }{180} = \frac{1}{3} \pi 
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3 years ago