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Elena-2011 [213]
3 years ago
12

HELP PLZ MATH IM FAILING

Mathematics
1 answer:
ehidna [41]3 years ago
6 0

Answer:

Hello! In this picture I marked the new dot for that point and reflected it across the x axis!

The original coordinates are: 5, -3

and the new coordinates are: 5, 3

Hope that helps!

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Given the third-order differential equation z′′′+2z′′−4z′−8z=0, find the general solution. Enter your solution as z(x)=... . In
Scorpion4ik [409]

Answer: z(x) = c_{1} e^{2x} +c_{2} e^{-2x} + c_{3} xe^{-2x}

Step-by-step explanation:

This is a <em>homogeneous linear third-order differential equation</em>

z′′′+2z′′−4z′−8z=0 so the

FIRST STEP is to find the characteristic equation and its roots

<em>m^{3} +2m^{2} -4m -8 = 0</em>

Using the method of finding roots of a polynomial (using m = 2) would provide the solution below

(m-2)(m+2)(m+2)=0;  m = 2 and m = -2 (repeated twice)

SECOND STEP is to write the general solution with the arbitrary constants.

The general solution based on the roots and the using x as the independent variable would provide

z(x) = c_{1} e^{2x} +c_{2} e^{-2x} + c_{3} xe^{-2x}

<em>*It should be noted that when the characteristic equation has a repeated root, the general equation form becomes similar to the last part of the answer*</em>

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3 years ago
Answer the question by writing an EQUATION! "Naomi caught half as many fish as Jack did, together they caught 18 fish, how many
kobusy [5.1K]

Step-by-step explanation:

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Help me with this question ASAP please
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Answer:

1) 14°

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Step-by-step explanation:

just subtract both angles from 180 because all triangle's angles always add up to 180°

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