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Ber [7]
3 years ago
8

Need help fast please with these 5 questions

Mathematics
1 answer:
Natali [406]3 years ago
3 0

Answer:

16.....................................

  • 6⁹*6ⁿ = 6¹²
  • 6⁹⁺ⁿ = ¹²
  • 9 + n = 12
  • n = 3

17.....................................

  • 7⁸/7ⁿ = 7³
  • 7⁸⁻ⁿ = 7³
  • 8 - n = 3
  • n = 5

18.....................................

  • 15ⁿ = 1
  • 15ⁿ = 15⁰
  • n = 0

19.....................................

  • 1/10⁵ = 10ⁿ
  • 10⁻⁵ = 10ⁿ
  • -5 = n
  • n = -5

20.....................................

  • (8²)ⁿ = 8¹²
  • 8²ⁿ = 8¹²
  • 2n = 12
  • n = 6

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Rashid [163]
<span><span><span><span>3/4</span>x</span>+11 </span>< <span><span>0.3x</span>+<span>3/4
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.75x+11 < 0.3x+.75
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7 0
4 years ago
Y=6x-1, y=3x-4 the solution is_____
TEA [102]

Answer:

y= -7 and x= -1

Step-by-step explanation:

To do this, line up the variables so it looks like this...

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y-3x=-4

The reason why -6x and -3y changes to negative is because that it moved to the other side of the equation.

distribute negative to the bottom equation because the two equations have the same number variable which is y...

y-6x=-1

-y+3x=4

Y cancels out and it will be left with -3x = 3.

X = -1.... plug that in to any of the two equation and you get y = -7.

Hope I helped and have a nice day!!

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2 years ago
Determine the quotient of 2/5 3/4
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Answer:

0.5333333

Step-by-step explanation:

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