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Irina-Kira [14]
3 years ago
5

What expression is equivalent to 12x⁴ over 4x¹⁶

Mathematics
1 answer:
alexgriva [62]3 years ago
7 0

Answer:

\frac{3}{x^1^2}

Step-by-step explanation:

\frac{12x^4}{4x^1^6}=3x^4/x^16

bring "x^4" to the bottom to subtract it with x^16

3/x^16*x^-4

3/x^12

hope this helps!

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What is the reactance of a 25 mF capacitor when the applied frequency is 400 Hz?
LuckyWell [14K]

The Reactance of a Capacitor is t<u>he resistance it has when alternating current (A/C) with a specific frequency (f) passes through it. </u>This is measured in ohms (Ω) and its formula is:


X_{C}=\frac{1}{2\pi fC}   (1)



Where:


X_{C} is the Reactance in ohms (Ω)

f is the frequency of the alternating current in Hertz (Hz)

C is the Capacitance of the Capacitor in Farad (F)



In this case we have a 25 mF capacitor with an applied frequency of 400 Hz.


Note 1mF=1*10^{-3}F=0.001F



Well, with the given data we have to solve (1):


X_{C}=\frac{1}{2\pi(400Hz)(25*10^{-3}F)}    

Then:


XC=0.0159 Ω   This is the Reactance of the Capacitor



4 0
3 years ago
How long does it take to travel 240 km at a constant speed of 12 km/h?
tankabanditka [31]

Answer:

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Step-by-step explanation:

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240 = 12 * t

Divide each side by 12

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5 0
4 years ago
This is the same triangle you used for Question 2.
sveta [45]

Answer:

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Step-by-step explanation:

in your answer, give the measure of Angle C and explain how you calculated it.

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Step-by-step explanation:

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