exam Maths Puzzle Numerical Ability

Write a function that represents the data set (-4, 9), (0, 1), (1, -1), (3, -5),
(4, -7).

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exam Other Question

Perform the matrix row operation and write the new matrix.

[2 4 7 |3]
[3 4 -1 |5] -2R1 + R3
[4 -6 3 |-2] Triangles ABC and DEF are similar
AB=5.0 cm
BC=6.0 cm
AC=7.0 cm
If triangle DEF has a perimeter of 360 degrees find the length of the sides of ABC