exam Maths Puzzle Numerical Ability

Find x.

If a triangle of known measurement is 45 degrees.

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exam Other Question

Hi, I am having trouble with this exercise:

11sin^2y = 13-3sin^2y for y, where 0<= y <360, How many angles satisfy this equation? Widgets R Us received proceeds of $3,082.67 from a simple discount note at 11% interest for 4 months. What was the maturity value of the note?

a. $3,300
b. $3,200