Beth and Sarah are selling candy for a school fundraiser. Customers can buy small boxes
1 answer:
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Answer:
Step-by-step explanation:
Arrange the equations so that all the variables are in columns (x as the first column, y as the second, equals a number as the third):
-11x - 4y = 36
5x + 5y = -10
Define and edit Matrix A. We need a 3 x 2 matrix. Input the coefficients and constant:
Find rref function, enter matrix A: rref([A]) (press enter)
This gives you:
which means:
<h2>question :</h2>
40. which of the following equation graphs as a vertical parallel to the y-axis?
41. if ΔABC = ΔFGH, then which of the following statements is not necessarily true?
<h2>my answer :</h2>40. the meaning of "vertical parallel to the y-axis" is a line that is perpendicular to the x-axis
then the equation that can be written parallel to the line y is x = a, a is the distance from point 0.
(*the second choice is correct)
41. if ΔABC = ΔFGH, it can be said that the second triangle of the shape is congruous (*in the picture)
(*the second choice is correct)