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3 years ago

What are the solution(s) of x2-4-0?

Mathematics

2 answers:

zavuch27 [327]3 years ago

8 0

It should be -2,2 I think!

victus00 [196]3 years ago

5 0

Answer:

-2,2

Step-by-step explanation:

x^2-4-0

(x+2)(x-2)

x+2=0

x=-2

x-2=0

x=2

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4 years ago

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inessss [21]

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3 0

3 years ago

The accompanying table shows wind speed and the corresponding wind chill factor

kompoz [17]

Answer:he accompanying table shows wind speed and the corresponding wind chill factor

when the air temperature is 29°F. Write a logarithmic regression equation for this set

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when the air temperature is 29°F. Write a logarithmic regression equation for this set

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Step-by-step explanation:

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3 years ago

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IRINA_888 [86]

Answer:

160%

Step-by-step explanation:

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3 0

3 years ago

Solve the decay equation y' = -ky using the integrating factors method. Show work

Alex777 [14]

Answer:

$y=\frac{c}{e^{kx}}$

Step-by-step explanation:

$\frac{\mathrm{d} y}{\mathrm{d} x} =-ky$

$\frac{\mathrm{d} y}{\mathrm{d} x} +ky=0$

comparing with equation

$\frac{\mathrm{d} y}{\mathrm{d} x} + Py=Q(x)$

$I.F.= e^{\int P dx}$

$I.F.= e^{\int k dx}$

$I.F.= e^{kx}$

$y=\frac{1}{I.F.} ( \int {Q(x)} dx +c)$

$y=\frac{1}{e^{kx}} ( \int {0} dx +c)$

$y=\frac{c}{e^{kx}}$

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4 years ago