exam Maths Puzzle Numerical Ability

Find the maximum value of C=2x+y on the region determined by the constraints:

{x + y <=6
{0 <= x <= 4
{0 <= y <= 4

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exam Other Question

Simplify:
4.27-6.98+1.3
Give exact and approximate solutions to 3 decimal places.

x^2 - 7x + 5 = 0

The exact solutions are: ___________

The approximate solutions to 3 decimals places are: _____