Cho tam giác ABC vuông tại A,đường cao AH. E và F là chân đường vuông góc kẻ từ H tới AB và AC a)tính HA, HB và HC và diện tích tứ giác BEFC biết AB=3m, AC=4cm

b)M và N là trung điểm của HB và HC. tính diện tứ giác EFMN

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is