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Vinil7 [7]
3 years ago
5

Which system is equivalent to y= 9x^2 x+y=5 ?

Mathematics
2 answers:
melomori [17]3 years ago
7 0

Answer : Option A

Explanation:

we can clearly see that from x+ y=5 we can substitute  y = 5-x in y = 9x^2

Option B is clearly incorrect  x can not be y -5

Option C  is incorrect because y can not be 5 +x

Option D is incorrect because  its y = 9x^2 not y^2 =9x^2 so y can not be 3x

if its y^2 = 9x^2 then  only  implies y =  3x

tangare [24]3 years ago
6 0

Answer:

Option 1st is correct

5-x= 9x^2

y = 5-x

Step-by-step explanation:

Given the equations:

y = 9x^2      .....[1]

x+y = 5         .....[2]

We can write equation [2] as:

y = 5-x

Now, substitute this y value in [1] we have;

5-x= 9x^2

Therefore, the system which is equivalent to the given system equation is,

5-x= 9x^2

y = 5-x

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To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 112 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
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●I tried my best I was never good with percentages my least favorite.... Please let me know if you got it wrong. If you do I'm sorry.
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