If 21% of males and 15% of females in a given state play the guitar, what is the probability that a randomly selected subject in
2 answers:
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Step-by-step explanation:
1) according to the condition two angles are equal, then two sides are equal also, it means
2) √x+4=√(5x+4);
3) the 'x' can be calculated if to solve this equation:
;
4) finally, answer: 9.
we know there are 180° in π radians, how many degrees then in -3π/10 radians?