Answer:
18 and 22.8 will be your answer
Step-by-step explanation:
For this case we have the following system of equations:

Equating the values of y we have:

From here, we can clear the value of x.
We have then:

Then, we look for the value of y.
For this, we substitute x in any of the equations:
Answer:
The ordered pair solution of the system of equations, is given by:
<u>Answer-</u>

<u>Solution-</u>
The given function is,

Now, we have to find the value of f(x) at x=2 i.e f(2), so putting x as 2 in the given function,






Therefore, f(2) was found to be 46.
1sqmeter=100x100=100000sqcm
in 1sqcm there are 23/100=.23 grass plants
Therefore, there will be .23x100000=2300 grass plants in a sq.meter
5x^2+45x-7x+63
5x^2+38x+63
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