47.5 / 10
= 4.75
The answer for this question is 4.75
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Multiply the first equation by 2:-
2y + 4.6 = 0.90x
2y - 0.90x = -4.6
second equation is
-2y - 4.2x = -7.8
Adding:-
-5.1x = -12.4
x = 2.4
-2y = -7.8 + 4.2(2.4) = 2.3
x = -1.2
Answer x = 2.4 and y = -1.2
Its choice A
Answer:
c. BC
Step-by-step explanation:
It is the possible one
By direct evaluation we conclude that the point (x, y) = (1, - 2) lies on the graph of the <em>quadratic</em> equation h(x) = - 2 · x². (Correct choice: C)
<h3>What ordered pair lies on the curve generated by a given function? </h3>
In this problem we have three <em>ordered</em> pairs to be checked on a given function by direct evaluation, a <em>ordered</em> pair lines on the curve of function if and only if the x-value of the <em>ordered</em> pair leads to the y-value by evaluating in the function. Now we proceed to evaluate each of the three points at the function presented in the statement:
(x, y) = (1, 4)
h(1) = - 2 · 1²
h(1) = - 2
By direct evaluation we conclude that the point (x, y) = (1, - 2) lies on the graph of the <em>quadratic</em> equation h(x) = - 2 · x². (Correct choice: C)
To learn more on quadratic equations: brainly.com/question/17177510
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