book Maths Puzzle Numerical Ability

And aircraft carrier follows a course that has a latitude of 288 miles north and a departure of 240 miles east in two days. Find its bearing.

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book Other Question

Solve the equation using factoring techniques.

(x+50)^2-16=0
I need to simplify this and cannot remember how. I must show work! Thank you for your wonderful help!

3^-2