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Firlakuza [10]
3 years ago
8

Adam is scuba diving. He descends 5 feet below sea level. He descends the same distance 4 more times. What is Adam's final eleva

tion?
Mathematics
2 answers:
suter [353]3 years ago
7 0

Answer:

It would be -25

Step-by-step explanation:

Because your going below sea level 5 times you would go to the left 5 times

                                        ( - 5 )

l--l--l--l--l--l--l--l--l--l--l--l--l--l--l_l

                                           5 0

Then he goes 4 more times down at the same distance <u>(-5 times)</u>

      -5  -5  -5   -5    -5                 l

 --l-----l----l----l------l-----l               l

  25 -20 -15 -10   -5    0              l

   1     2    3   4)      <u>1 </u>                   l

(other 4 times)    <u>(1st time)</u>         l

<u>                                                     l</u>

So its 5 x 5 cause your adding the first time you moved 5 to the left with the other 4 times you moved to the left 5 times And so 5 x 5 = -25

The equation is 5(-5) = -25

vichka [17]3 years ago
5 0
I think it's 20 because 5 feet times 4 more times equals 20.

5*4=20

So 20 feet?

I think that's right, and I hope it helps :)
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Steps:

x^3-7x^2+2x+4

Use\:the\:rational\:root\:theorem,\\a_0=4,\:\quad a_n=1,\\\mathrm{The\:dividers\:of\:}a_0:\quad 1,\:2,\:4,\:\quad \mathrm{The\:dividers\:of\:}a_n:\quad 1,\\\mathrm{Therefore,\:check\:the\:following\:rational\:numbers:\quad }\pm \frac{1,\:2,\:4}{1},\\\frac{1}{1}\mathrm{\:is\:a\:root\:of\:the\:expression,\:so\:factor\:out\:}x-1,\\\left(x-1\right)\frac{x^3-7x^2+2x+4}{x-1}

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\mathrm{Divide}\:\frac{x^3-7x^2+2x+4}{x-1},\\\mathrm{Divide\:the\:leading\:coefficients\:of\:the\:numerator\:}x^3-7x^2+2x+4\mathrm{\:and\:the\:divisor\:}x-1\mathrm{\::\:}\frac{x^3}{x},\\\mathrm{Quotient}=x^2,\\\mathrm{Multiply\:}x-1\mathrm{\:by\:}x^2:\:x^3-x^2,\\\mathrm{Subtract\:}x^3-x^2\mathrm{\:from\:}x^3-7x^2+2x+4\mathrm{\:to\:get\:new\:remainder},\\\mathrm{Remainder}=-6x^2+2x+4,\\Therefore,\\\frac{x^3-7x^2+2x+4}{x-1}=x^2+\frac{-6x^2+2x+4}{x-1}

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\mathrm{Hope\:This\:Helps!!!}

\mathrm{-Austint1414}

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