exam Maths Puzzle Numerical Ability

- 6 < or equal to 3 + x < 4

3x + 1 < or equal to -2 or 2x + 3 > or equal to 5

[x - 4] > 3

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exam Other Question

14. Find the length x. Express your answer in simplified radical form.

51ft., 45ft, x

I think the formula is c^2=a^2+b^2

I came up with x=rs 4626 but I know that's not the Use elementary row operations to write the matrix in echelon form:

[2 4 2 6]
-2 1 3 4
3 2 1 5

please someone help me figure this out and if an