Mọi người giúp em giải bài này với.
giải tam giác ABC vuông tại A trong mỗi trường hợp sau:
...
Mathematics, 26.10.2021 14:00, xoxokaydavis2638
Mọi người giúp em giải bài này với.
giải tam giác ABC vuông tại A trong mỗi trường hợp sau:
a) b=4 cm; góc C = 62°
b) a=40 cm; góc B = 52°
c) c=42 cm; b=36 cm.
Answers: 3
Mathematics, 21.06.2019 19:40, evarod
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 22:00, dorothybean
Describe how you can act financially responsible.
Answers: 1
Mathematics, 21.06.2019 22:10, ava789
Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe
Answers: 3
Mathematics, 21.06.2019 22:30, Calmalemi
Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters
Answers: 1
Social Studies, 24.07.2019 06:30
History, 24.07.2019 06:30
English, 24.07.2019 06:30
History, 24.07.2019 06:30
Mathematics, 24.07.2019 06:30
Biology, 24.07.2019 06:30
History, 24.07.2019 06:30