What is the measure of angle x?

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For the function, f(x) = -5x 2, find f(-4).

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1