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yawa3891 [41]
3 years ago
6

A density graph for all of the possible temperatures from 60 degrees to 160 degrees can be used to find which of the following?

Mathematics
2 answers:
goldenfox [79]3 years ago
8 0

Answer: 90 degrees to 120 degrees

D

Step-by-step explanation:

vfiekz [6]3 years ago
5 0

Answer: 90 degrees to 120

Step-by-step explanation:

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Answer:

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What is an equation for a sine curve with amplitude 2, and period 4pi radians ?
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<span>1. a sine curve with amplitude 2, and period 4pi radians
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the general equation of the sine curve ⇒⇒ y = a sin (nθ)
where: a is the amplitude  and  n = 2π/perid
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∴ y = 2 sin (θ/2)

The correct answer is option D. y = 2 sin (θ/2)
===========================================

<span>2.The period and amplitude of the function ⇒⇒ y = 5 cos 2θ
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<span>comparing with y = a cos nθ
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where : a is the amplitude  and  n = 2π/period
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The correct answer is option B. Period: pi radians: Amplitude:5

============================================================
3. tan (2π/3) = tan 120° = -√3 
120° lie in the second quadrant and its reference angle = 180° - 120° = 60°
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The correct answer is C. -sqrt3

=====================================================
4. <span>Tan 5π/6 = tan 150° = -(√3)/3
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150° lies in the second quadrant and its reference angle = 180° - 150° = 30°
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3 years ago
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Y_Kistochka [10]

Answer:

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4y = x - 8

y = (x - 8)/4

Hope this helps.

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The slope of a line that is perpendicular to a line whose slope is -2/7 is
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The slope would be 7/2
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