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sammy [17]
4 years ago
12

NEED HELP PLEASEEEEE

Mathematics
1 answer:
Aloiza [94]4 years ago
5 0
2x+6=x-3

if you also need the answer it's x=-9
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What is the following is the solution to the equation 25^(z+2) = 125
maksim [4K]

First, rewrite the equation 25^{z+2} = 125 with the base equal to 5. Note that:

  • 25=5^2;
  • 125=5^3;
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Then

5^{2\cdot (z+2)}=5^3.

Since the bases are equal, you have that powers are equal too:

2\cdot (z+2)=3,\\ \\2z+4=3,\\ \\2z=3-4,\\ \\2z=-1,\\ \\z=-\dfrac{1}{2}.

Answer: z=-\dfrac{1}{2}.


3 0
4 years ago
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3 years ago
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What is the distance between P(0, 14) and Q(5, -2)?
Sophie [7]
P(x₁ , y₁) and Q(x₂ , y₂) ↔ [ P(0,14)    Q(5, - 2)]
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PQ = √[(5 - 0)² + (- 2 - 14)²]

PQ =  √[(25 + 256]

PQ =  √281

PQ = 17.76

3 0
4 years ago
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