3 years ago

Sistemas de ecuaciones aplicando sustitucion me ayudan porfa

Mathematics

1 answer:

gregori [183]3 years ago

5 0

Answer:

jdbhbehfbhwbfhbwehfbhjwebfwhjfhsbfhbh loool :)

Step-by-step explanation:

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Need help<br> Question in the screenshot below<br> NO spam<br> Please show your work

Alja [10]

<h3>Answer: x = 6</h3>

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Work Shown:

$\log_{4}(x+10)+\log_{4}(x-2)=\log_{4}(64)\\\\\log_{4}\left((x+10)(x-2)\right)=\log_{4}(64)\\\\(x+10)(x-2)=64\\\\x^2-2x+10x-20=64\\\\x^2-2x+10x-20-64=0\\\\$

$x^2+8x-84=0\\\\(x+14)(x-6)=0\\\\x+14=0 \ \text{ or } \ x-6=0\\\\x=-14 \ \text{ or } \ x=6\\\\$

Those are the possible solutions, but plugging x = -14 back into the original equation will lead to an error. So we rule x = -14 out

x = 6 works as a solution however

3 0

3 years ago

Peter went to his local zoo where 50% of its exhibits featured lions. If the zoo features 24 exhibits in total, then how many of

Sauron [17]

12 exhibits featured lions since half of 24 is 12.

3 0

3 years ago

Read 2 more answers

Someone please help me with this

Lynna [10]

Answer:

Step-by-step explanation:

3/4x + -3

3 0

2 years ago

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Simplify 8(xy + 8) + 1. 8xy + 9 8xy + 65 8xy + 73

Advocard [28]

Answer:

8xy + 65

Step-by-step explanation:

8(xy + 8) + 1.

8 x 8=

64 + 1=

65 (8xy + 65)

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LINE THE NUMBERS UP AND IT WILL MAKE SENSE

5 0

3 years ago

Given: f(x) = 3x2 + 2x – 1

denis-greek [22]

Answer:

Step-by-step explanation:

f(x) = 3x^2 + 2x – 1

Let x=5

f(5) = 3(5)^2+2(5) -1

= 3*25 +10-1

= 75+10 -1

= 85 -1

4 0

3 years ago