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KatRina [158]
3 years ago
9

From 84 seconds to 8 seconds

Mathematics
2 answers:
Allushta [10]3 years ago
7 0

Answer:

76 seconds

Step-by-step explanation:

84 - 8 = 76 seconds

Svet_ta [14]3 years ago
6 0

Answer:

Clarify

Step-by-step explanation:

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The last one is correct because 60+35+35+35=165
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1. __% of 4 is 7 <br><br> 2.__% of 75 is 25
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  1.    57.142857142857%

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Helen earns 7.50 an hour at her job but if she works more than 35 hours in a week and is paid 1 and 1/2 times her regular salary
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Step-by-step explanation:

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3 years ago
Factor completely.<br><br> 15x^2y^2-3x^3y+75x^4
olga_2 [115]
<span><span> 15x2y2+3x3y+75x4</span> </span>Final result :<span> 3x2 • (25x2 + xy + 5y2) </span>

Step by step solution :<span>Step  1  :</span><span>Equation at the end of step  1  :</span><span><span> (((15•(x2))•(y2))+((3•(x3))•y))+(3•52x4) </span><span> Step  2  :</span></span><span>Equation at the end of step  2  :</span><span><span> (((15•(x2))•(y2))+(3x3•y))+(3•52x4) </span><span> Step  3  :</span></span><span>Equation at the end of step  3  :</span><span> (((3•5x2) • y2) + 3x3y) + (3•52x4) </span><span>Step  4  :</span><span>Step  5  :</span>Pulling out like terms :

<span> 5.1 </span>    Pull out like factors :

  <span> 75x4 + 3x3y + 15x2y2</span>  =  <span> 3x2 • (25x2 + xy + 5y2)</span> 

Trying to factor a multi variable polynomial :

<span> 5.2 </span>   Factoring   <span> 25x2 + xy + 5y2</span> 

Try to factor this multi-variable trinomial using trial and error<span> 

 </span>Factorization fails

Final result :<span> 3x2 • (25x2 + xy + 5y2) </span><span>

</span>
7 0
3 years ago
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