exam Maths Puzzle Numerical Ability

y = x
y = 5x

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exam Other Question

find the area of a triangle with sides of length 9 and 24 and included angle 12degrees. Round to the nearest tenth.
I have 22.5, but I believe I did this wrong since I seen an example using trig functions, can someone please help.
Show that the number is rational by writing it as a quotient of two integers.

4. 0.37

Any help with this equation would be GREATLY</b> appreciated.