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lina2011 [118]
3 years ago
14

Substitution or Elimination.

Mathematics
1 answer:
zimovet [89]3 years ago
5 0
It's a simultaneous equation ^^; So basically I first look at the number in front of the Y values (if they aren't the same you have to multiply each equation by the other number in front of Y in the second line and vice versa but anyways) you add the two equations if they are the same so: -3x+2y=23 + 5x+2y = -17 which should give you 2x=40 then divide by two to get x put your x answer back into the top or bottom equation (your call ^^;) and then work out what must be the Y value! I really hope this helps! ^^; 
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masya89 [10]

Answer:

x=2, y=1

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Step-by-step explanation:

x - 2y = 0

x = 2y

x² - y² = 3

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3y² = 3

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5 0
3 years ago
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stira [4]

Answer:

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3 0
3 years ago
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kaheart [24]

Answer:

The length of the hall way

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4 0
3 years ago
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How to solve this.im stuck in this question for 20 mins. Plzz answer
Alik [6]

Answer:

Find the minimum or maximum value of the function g (I) = -3x^2 - 6x + 5. Describe the domain and range of the function, and where the function is increasing and decreasing. > -1 all real numbers The function The maximum value is I < 0 The domain is and the range is right of I left -1 is increasing to the of I= and decreasing to the 0 12 :: yo y0 :: 8 :: IS-1 :: -1 :: 0 :: I> 0 :: 1 :: 8 :: < 0 :: left :: all real numbers :: y -8 :: y < 8 :: y8​

Step-by-step explanation:

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2 years ago
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Viktor [21]

\ln(4x+y)=2x-3

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\dfrac1{4x+y}\dfrac{\mathrm d(4x+y)}{\mathrm dx}=2

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4 0
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