Two ships left a port at the same time. one ship traveled at a speed of 19 miles per hour at a heading of 320°. the other ship traveled at a speed of 28 miles per hour at a heading of 197°. find the distance between the two ships after 10 hours of travel. (round your answer to the nearest mile.) this is what i've got so far, but it didn't come out right according to my homework. thoughts? (280)^2 + (190)^2 - 2(280)(190)cos(83) = 101,533.1019 (take the square root of this number) = 318.6

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

What are the sotions to the quadratic equation 9x^2=4

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why