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yanalaym [24]
3 years ago
15

What is the exact value of the exponential equation, 5(10)4x=75 ?

Mathematics
1 answer:
sweet [91]3 years ago
3 0

Answer:

c

Step-by-step explanation:

using the law of logarithms

logx^{n} ⇔ nlogx

given 5((10)^{4x} = 75 ( divide both sides by 5 )

(10)^{4x} = 15 ( take log of both sides )

log10^{4x} = log15

4xlog10 = log15 ← log10 = 1

4x = log15 ( divide both sides by 4 )

x = \frac{log15}{4} → c



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Step-by-step explanation:

 3x+2(4+6x)=133

  3x+8+12x=133                      First I distibuted the 2 too the 4 and 6x

15x+8=133                                 Then I added the x es 3x and 12x

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15x=125                                    That leaves with this

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x= 8.33333                                 that is the answer

                             check

                  3x+2(4+6x)=133

                 3*8.333333+2(4+6*8.333333)=133

                  24.999999 +2(4+ 49.999998)=133

                    24.999999+2( 53.999998)=133

                         24.999999+107.999996=133

                              132.999995=133

                       

                                 You can not get an exact answer for this problem

4 0
3 years ago
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