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zzz [600]
2 years ago
11

M=15.75+3.2d Find M when d=20

Mathematics
2 answers:
Vlada [557]2 years ago
5 0
15.75+3.2*20=M;
M=15.75+64;
M=69.75.
Answer: 69.75.
seraphim [82]2 years ago
4 0
This equation written as a linear line equation is Y=3.2x+15.75 ( I think that looks nicer) and then if you were to graph it on a graph. youse that when x Or in your case D is twenty Y/M is 79.75
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What are the solutions of the equation x4 + 3x2 + 2 = 0? Use u substitution to solve.
Julli [10]

ANSWER

x =  \: x =  \pm \:  \sqrt{2} i \: or \: x =  \pm \: i

EXPLANATION

{x}^{4}  + 3 {x}^{2}  + 2 = 0

{ ({x}^{2}) }^{2}  + 3( {x}^{2})  + 2 = 0

Let

u  =  {x}^{2}

Then the equation becomes:

{u}^{2}  + 3u + 2 = 0

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Factor:

{u}(u + 2)+ 1(u +  2) = 0

(u + 1)(u +  2) = 0

u =  - 1

or

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This implies that

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3 0
3 years ago
Please help I have tried multiple times but keep getting it wrong.
VladimirAG [237]

Answer:

inequality form: x

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3 0
3 years ago
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gregori [183]
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3069

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3 0
3 years ago
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