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koban [17]
4 years ago
12

I need help!! Please explain so I can learn

Mathematics
2 answers:
saveliy_v [14]4 years ago
8 0
What is the question asking?
kompoz [17]4 years ago
8 0
The equation you need is y=mx+b (slope-intercept form). Since the y-intercept, b, is 0 (x=0 when y=0) the remaining part is y=mx. M is your slope/rate of change. It can be expressed as rise over run (y over x) of one ordered pair- so, -3/1 -> -3. Your equation is y= -3x
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Answer:

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hope it helps

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iris [78.8K]
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3cot^(2 )x-1=0<br><br> Pls Help
Elina [12.6K]

Answer:

x=\frac{\pi }{6} ,\frac{7\pi }{6}

Step-by-step explanation:

3*cot^2x-1=0\\\\3*cot^2x=1\\\\cot^2x=\frac{1}{3} \\\\cot(x)=\sqrt{\frac{1}{3} } \\\\cot(x)=\frac{1}{\sqrt{3} } \\\\\frac{1}{tan(x)}=\frac{1}{\sqrt{3} } \\\\tan(x)=\sqrt{3} \\

x=tan^-1(\sqrt{3})

It has to be in Quadrant 1  \frac{+}{+} =+ or 3 \frac{-}{-}=+ for positive.

x=\frac{\pi }{6} ,\frac{7\pi }{6}

Unless that incorrect due to tan(x) range is -\frac{\pi }{2} \leq x\leq \frac{\pi }{2}. Then the only answer is x=\frac{\pi }{6}

5 0
2 years ago
I need help with this one
OlgaM077 [116]

Answer:

112.98 square units

Step-by-step explanation:

Let's work backwards:

Circumference = 2πr

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Area = πr^{2}

Area = π * ((37.68)/2pi)^{2}

Area = 112.983 square units

3 0
3 years ago
Read 2 more answers
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